Common Shares

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The Company may offer Common Shares. The Company may issue Common Shares independently or together with Warrants or Subscription Receipts, and the Common Shares may be attached to or separate from such securities. Holders of Common Shares are entitled to one vote per Common Share on all matters that require shareholder approval. Holders of Common Shares are entitled to dividends when and if declared by the Board of Directors of the Company.Board. The Common Shares are described in greater detail in this Prospectus under “Description of Common Shares.”Shares”.

Warrants

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The Company may offer Warrants for the purchase of Common Shares, in one or more series, from time to time. The Company may issue Warrants independently or together with Common Shares or Subscription Receipts, and the Warrants may be attached to or separate from such securities. Certain warrants to purchase Common Shares of the Company (“Listed Warrants”) are listed on the TSX under the symbol VGZ.WT.U. However, Warrants to be issued under this Prospectus may or may not be listed on the TSX or on any other securities exchange. The Prospectus Supplement regarding any Warrant to be issued under this Prospectus will provide disclosure regarding whether the Warrants to be issued under such Prospectus Supplement will be listed or are listed on a securities exchange and will be filed in Canada on the System for Electronic Document Analysis and Retrieval (“SEDAR”) and in the United States with the SEC.

The Warrants will be evidenced by warrant certificates and may be issued under one or more warrant indentures, which are contracts between the Company and a warrant trustee for the holders of the Warrants. In this Prospectus, the Company has summarized certain general features of the Warrants under “Description of Warrants.” The Company urges you, however, to read any Prospectus Supplement related to the series of Warrants being offered, as well as the complete warrant indentures and warrant certificates that contain the terms of the Warrants. Specific warrant indentures will contain additional important terms and provisions and will be filed in the United States on Form 8-K with the SEC and will be filed in Canada on SEDAR.SEC.

Subscription Receipts

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The Company may issue Subscription Receipts, which will entitle holders to receive upon satisfaction of certain release conditions and for no additional consideration, Common Shares, Warrants or any combination thereof. Subscription Receipts will be issued pursuant to one or more subscription receipt agreements, each to be entered into between the Company and an escrow agent, which will establish the terms and conditions of the Subscription Receipts. Each escrow agent will be a financial institution organized under the laws of Canada or a province thereof and authorized to carry on business as a trustee. A copy of the form of subscription receipt agreement will be filed in the United States on Form 8-K with the SEC and will be filed in Canada on SEDAR.SEC.

In the Prospectus, the Company has summarized certain general features of the Subscription Receipts under “Description of Subscription Receipts”. The Company urges you, however, to read any Prospectus Supplement related to Subscription Receipts being offered, as well as the complete subscription receipt agreement.

Units

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The Company may offer Units consisting of Common Shares, Warrants and/or Subscription Receipts to purchase any of such securities in one or more series. This Prospectus contains a summary of certain general features of the

Units under “Description of Units.” The Company urges you, however, to read any Prospectus Supplement related to the series of Units being offered. The Company may evidence each series of units by unit certificates that the Company will issue under

a separate unit agreement with a unit agent. The Company will file in the United States on Form 8-K with the SEC and will filed in Canada on SEDAR the unit agreements that describe the terms of the series of Units the Company is offering before the issuance of the related series of Units.

THIS PROSPECTUS MAY NOT BE USED TO OFFER OR SELL ANY SECURITIES UNLESS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.

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RISK FACTORS

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Investing in the Securities involves a high degree of risk. Prospective investors in a particular offering of Securities should carefully consider the following risks as well as the other information contained in this Prospectus, any applicable Prospectus Supplement, and the documents incorporated by reference herein before investing in the Securities. If any of the following risks actually occurs, the Company’s business could be materially harmed. The risks and uncertainties described below are not the only ones the Company faces. Additional risks and uncertainties, including those of which the Company is currently unaware or that the Company deems immaterial, may also adversely affect the Company’s business.

Operating Risks

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We cannot be assured that our Mt.Mt Todd gold project is feasible or that a feasibility study will accurately forecast operatingeconomic results.

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Mt Todd is our principal asset. Our future profitability depends largely on the economic feasibility of the Project. Before arranging financing for the Mt.Mt Todd, gold project, we will have to complete a feasibility study. The results of our feasibility study may not be as favorable as the results of our prefeasibility studies. There can be no assurance that the results of the feasibility study will be positive or that such study will be completed when expected. 

If the Mt. Toddmining, comminution and gold project feasibility study is favorable, and if the project can be financed, there is no assurance that actualrecovery processes (including ore sorting), gold production rates, revenues,revenue, and capital and operating costs at the Mt. Todd gold projectincluding taxes and royalties will not vary unfavorably from the estimates and assumptions included in thesuch feasibility study.

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Our Mt.Mt Todd gold project requires substantial capital investment and we may be unable to raise sufficient capital on favorable terms or at all.

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The construction and operation of our Mt.Mt Todd gold project will require significant capital. Our ability to raise sufficient capital and/or secure a development partner on satisfactory terms, if at all, will depend on several factors, including a favorable feasibility study, acquisition of the requisite permits, macroeconomic conditions, and future gold prices. Uncontrollable factors or other factors such as lower gold prices, unanticipated operating or permitting challenges, perception of environmental impact, or illiquidity in the debt markets or a further dislocation in the gold mining equity markets, including the cost of capital and other conditions of financing arrangements that impose restrictive covenants and security interests that may affect the Company’s ability to operate as experienced in recent years,intended, maintain ownership of its assets and ultimately its ability to continue as a going concern, could prohibitimpede our ability to finance the Mt.Mt Todd gold project on acceptable terms, ifor at all.

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If we decide to construct the mine at our Mt.Mt Todd, gold project, we will be assuming certain substantial reclamation obligations resulting in a material financial obligation.

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The Mt.Mt Todd gold project site was not reclaimed when the original mine closed. Although we are not currently responsible for the reclamation of these historical disturbances, we will accept full responsibility for them if and when we make a decision to finance and construct the mine.mine and provide notice to the NT Government of our intention to take over and assume the management, operation and rehabilitation of Mt Todd. At thatsuch time, we will be required to provide a bond or other surety in a form and amount satisfactory to the NT Government (in whose jurisdiction the Mt.Mt Todd gold project is located) that would cover the prospective expense of the reclamation ofto reclaim the property. In addition, the regulatory authorities may increase reclamation and bonding requirements from time to time. The satisfaction of these bonding requirements and continuing or future reclamation obligations will require a significant amount of capital.

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We may not be able to get the required permits to begin construction at our Mt.Mt Todd gold project in a timely manner or at all.

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Any delay in acquiring the requisite permits, or failure to receive required governmental approvals (including the approval of the environmental impact statement), could delay or prevent the start of construction of our Mt. Todd gold project.Mt Todd. If we are unable to acquire permits to mine the property, then it willthe Project cannot be developed and operated. In addition, the property would have no reserves under

SEC Industry Guide 7, S-K 1300, and Canadian National InstrumentNI 43-101, (“NI 43-101”), which wouldcould result in an impairment of the carrying value of the project.Project.

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There may be other delays in the construction of our Mt. Todd gold project.Mt Todd.

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Delays in commencement ofcommencing construction could result from factors such as availability and performance of engineering and construction contractors, suppliers, consultants, and consultants;employees; availability of required equipment; and availability of capital. Any delay in the performance ofby any one or more of the contractors, suppliers, consultants, employees or other persons on which we depend, or lack of availability of required equipment, or delay or failure to receive required governmental approvals, or financing could delay or prevent commencement of construction at the Mt. Todd gold project.Mt Todd. There can be no assurance of whether or when construction at the Mt.Mt Todd gold project will start or that the necessary personnel, equipment or supplies will be available to the Company if and when construction is started.

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Increased costs could impede our ability to become profitable.

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Capital and operating costs at mining operations are subject to variation due to a number of factors, such as changing ore grade, changing metallurgy, and revisions to mine plans in response to changing commodity prices, additional drilling results and updated geologic interpretations. In addition, costs are affected by the cost of capital, tax and royalty regimes, trade tariffs, the global cost of mining and processing equipment, commodity prices, and foreign exchange rates, as well as the costs of fuel, electricity, operating supplies, and appropriately skilled labor. These costs are at times subject to volatile price movements, including increases that could make future development and production at Mt Todd less profitable or uneconomic. This could have a material adverse effect on our business prospects, results of operations, cash flows and financial condition.

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We cannot be assured that we will have an adequate water supply for mining operations at our Mt. Todd gold project.Mt Todd.

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Water at the Mt.Mt Todd gold project is expected to be provided from a fresh water reservoir whichthat is fed by seasonal rains. DroughtInsufficient rainfall, or drought-like conditions in the area feeding the reservoir could limit or extinguish this water supply, and allsupply. Sufficient water resources may not be available, resulting in curtailment or stoppage of operations would have to stop until the water supply is replenished.

We could incur substantial costs or disruptions to our business if we cannot obtain, renew or maintain the necessary authorizations and permits.

In order to conduct our operations, we must obtain authorizations and permits from governmental authorities.  Delays in obtaining authorizations or permits, failure to obtain an authorization or permit or receipt of an authorization or permit with unreasonable conditions or costsThis could have a material adverse effect on our ability to develop our gold projects.business prospects, results of operations, cash flows and financial condition.

The failure to obtain necessary permits could result in an impairment of the carrying value of our projects as the project(s) will not have mineral reserves under SEC Industry Guide 7 or NI 43-101.​

We rely on third parties to fulfill their obligations under agreements.

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Our business strategy includes entering into agreements with third-parties (“Partners”Third-Parties”) which may earn, including the right to obtain a majority interest in certain of our projects, in part by managingNorthern Territory Government, the respective project. Whether or not we hold a majority interest in a respective project, our Partner(s)Jawoyn Association Aboriginal Corporation (the “Jawoyn Association”), and Nusantara Resources Limited. These Third-Parties may: (i) have economic or business interests or goals that are inconsistent with or opposed to ours; (ii) exercise vetohave rights to block actions thatin conflict with what we believe to be in theour best interests of the project;interests; (iii) take action contrary to our policies or objectives; or (iv) as a result of financial or other difficulties,reasons, be unable or unwilling to fulfill their obligations under the respective joint venture, option, earn-in right or other agreement(s), such as contributing capital for the expansion or maintenance of projects.. Any one or a combination of these could result in liabilities for us and/or could adversely affect the value of the related project(s) and, by association, damage our reputation and consequently our ability to acquire or advance other projects and/or attract future co-venturers. Third-Parties.

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Our exploration and development operationsinterests are subject to evolving environmental regulations.

All phases of our operations​

Our property and royalty interests are subject to environmental regulation.regulations. Environmental legislation is becoming more restrictive in some countries or jurisdictions, in a manner that will requirewith stricter standards and enforcement, increased fines and penalties for non-compliance, more stringent environmental assessments of proposed projects, and a heightened degree of responsibility for companies and their officers, directors and employees. There is no assurance that future changes in environmental regulation, if any, will not adversely affect our projects.interests. Currently, weour property and royalty interests are subject to U.S. federal and state environmental regulations in California, as well as government environmental regulations in Australia, Indonesia and Mexico.the U.S.

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We could be subject to environmental lawsuits.

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Neighboring landowners and other third parties could file claims based on environmental statutes and common law for personal injury and property damage allegedly caused by environmental nuisance, the release of hazardous substances or other waste material into the environment on or around our properties. There can be no assurance that our defense of such

claims would be successful. This could have a material adverse effect on our business prospects, financial condition, results of operation, and corporate reputation.

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We may have material undisclosed environmental liabilities of which we are not aware.

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Vista has been engaged in gold exploration since 1983. Since inception the Company has been involved in numerous exploration projects in many jurisdictions. There may be environmental liabilities associated with disturbances at any of these projects for which the Company may be identified as a responsible or potentially responsible party, regardless of its level of involvement in creating the related disturbance. We may not be aware of such claims against the Company until regulators provide notice thereof. Consequently, we may have material undisclosed environmental

responsibilities which could negatively affect our business prospects, financial condition and cash flows, results of operations, and corporate reputation.

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There may be challenges to our title to mineral properties.

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There may be challenges to our title to our mineral properties. If there are title defects with respect to any of our properties, we may be required to compensate other persons or perhaps reduce or lose our interest in the affected property. Also, in any such case, the investigation and resolution of title issues wouldcould divert management’s timeCompany resources from company business, including any ongoing exploration and development programs.our core strategies.

Our interests in Mexico, Bolivia and Indonesia are subject​

Opposition to risks from political and economic instability.

We have interests in Mexico, Bolivia and Indonesia that may be affected by risks associated with political or economic instability in those countries. The risks include, but are not limited to, military repression, extreme fluctuations in currency exchange rates, labor instability or militancy, mineral title irregularities and high rates of inflation. In addition, changes in mining or investment policies or shifts in political attitude in these countries may adversely affect our business. We may be affected in varying degrees by government regulation with respect to restrictions on production, price controls, export controls, income taxes, expropriation of property, maintenance of claims, environmental legislation, land use, land claims of local people, water use and mine safety. The effect of these factors cannot be accurately predicted.

Financial and Business Risks

The Purchasers of the Los Cardones project may elect to not make a $6,250,000 payment to us by July 31, 2014, which would severely reduce our expected working capital and negatively affect our planned liquidity.

During October 2013, Vista and Invecture Group S.A. de C.V. (“Invecture”) terminated the 2012 Earn-in Right Agreement whereby InvectureMt Todd could have earned a 62.5% interest in the Los Cardones gold project located in Baja California Sur, Mexico,material adverse effect.

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There is generally an increasing level of public concern relating to extractive industries. Opposition to extractive industries, or our development and entered into new agreements whereby Vista sold 100% of its debtoperating plans at Mt Todd specifically, could have adverse effects on our reputation and equity interests in the Los Cardones gold project (the “Los Cardones Sale”) to Invecture and RPG Structured Finance S.a.R.L.  (together, the “Purchasers”), for a total of $13,000,000, $7,000,000 of which was paid in October 2013 and $6,000,000 was payable in January 2014, subject to the Purchasers’ option to elect to not make this payment.support from other stakeholders. As a result, of permitting delays, we and the Purchasers have agreed to extend the due date of the $6,000,000 payment to July 31, 2014 for consideration of $250,000. If the Purchasers elect to not make the $6,250,000 payment, Vista will retain the $7,000,000 already paid and 100% of the Los Cardones gold project will be returned to Vista. The Company would also assume all of the responsibilities associated with maintaining the Los Cardones gold project on a going forward basis.

We may be unable to raise additional capitalsecure adequate financing or complete other activities necessary to continue our planned activities. Any resulting delays or an inability to develop and operate Mt Todd as planned could have a material adverse effect on favorable terms,our business prospects, results of operations, cash flows, financial condition and corporate reputation.

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Our exploration and development activities, strategic transactions, or any acquisition activities may not be commercially successful and could fail to lead to gold production or fail to add value.

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Substantial expenditures are required to acquire gold properties, establish mineral reserves through drilling and analysis, develop metallurgical processes to extract metal from the ore and develop the mining and processing facilities and infrastructure at any site chosen for mining. We cannot be assured that any such activities will be commercially successful, lead to gold production, or add value.

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Financial and Business Risks

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We have a history of losses, and we do not expect to generate earnings from operations or pay dividends in the near term, if at all.

The​

We are an exploration stage enterprise. As such, we devote our efforts to exploration, analysis and, if warranted, development of our properties, specificallyprojects. We do not currently produce gold and do not currently generate operating earnings from gold production. We finance our business activities principally by issuing equity and selling non-core assets.

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We have incurred losses in all periods since 1998, except for the constructionyears ended December 31, 2011, during which we recorded non-cash net gains, December 31, 2015 during which we recorded gains related to research and development refunds, and December 31, 2020 in which we monetized certain mineral property interests. We expect to continue to incur losses. We have no history of any mining facilitiespaying cash dividends and commencement of any mining operations, require substantial additional financing. We will havewe do not expect to raise additional funds from external sources (through equity or debt financing or through the sale of our assets) in order to maintain and advance our existing property positions and to acquire new gold projects. There can be no assurance that additional financing will be available at all or on acceptable terms. In addition, there can be no assurance that we will be able to timely monetize our non-core assetspay cash dividends or to make any similar distribution in the foreseeable future, if at a value acceptable to us or at all. If additional financing or sale of our assets are not available, we may have to substantially reduce or cease operations.

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A substantial or extended decline in gold prices would have a material adverse effect on the value of our assets and on our ability to raise capital and could result in lower than estimated economic returns.

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The value of our assets, our ability to raise capital and our future economic returns are substantially dependent on the price of gold. The gold price fluctuates on a daily basiscontinually and is affected by numerous factors beyond our control. Factors tending to influence gold prices include:

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A substantial or extended decline in the gold price could:

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Industry consolidation could result in the acquisition of a control position in the Company for less than fair value.

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Consolidation within the industry is a growing trend. As a result of the broad range of market and industry factors including the price of gold, we believe the current market value of the Common Shares does not reflect the fair value of the Company’s assets. These conditions could result in the acquisition of a control position, or attempted acquisition of a control position in the Company at what we believe to be less than fair value. This could result in substantial costs to us and divert our management’s attention and resources. A completed acquisition could result in realized losses of shareholder value.

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We have a historymay be unable to raise additional capital on favorable terms, or at all.

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Our exploration and, if warranted, development activities and the construction and start-up of losses, and we do not expectany mining operation require substantial amounts of capital. In order to generate earnings from operations develop Mt Todd, acquire attractive gold projects, and/or pay dividends in the near term.

We are an Exploration Stage Enterprise.  As such, we devote our efforts to exploration, analysis and development of our projects.  We do not currently produce gold and do not currently generate operating earnings.  We financecontinue our business, activities principally by issuingwe will have to secure a development partner or otherwise source sufficient equity, and/debt or debt andother forms of capital, raise additional funds from the sale of non-core assets.  assets and / or seek additional sources of capital from other external sources.

We have incurred lossesThere can be no assurance that we will be successful in all periods since 1998, except forraising additional capital on acceptable terms, including the year ended December 31, 2011, during which we recorded non-cash net gains. Our historic accumulated deficit totals approximately $394 millioncost of such capital and other conditions of financing arrangements that impose restrictive covenants and security interests that may affect the Company’s ability to operate as at December 31, 2013, $334 million as at December 31, 2012intended, maintain ownership of its assets and $264 million as at December 31, 2011.  Additionally, we had negative cash flow from operating activities of $25 million for the year ended December 31, 2013.  We expectultimately its ability to continue this trend of incurring losses, until oneas a going concern. If we cannot raise sufficient additional capital, we may be required to substantially reduce or more of our gold properties becomes a producing mine(s), or is otherwise monetized, and generates sufficient revenues to fund all of ourcease operations, including our corporate headquarters.  We have no history of paying dividends and we do not expect to pay dividends or to make any similar distribution in the foreseeable future.

We cannot be certain that any of which may affect our exploration and development activities or any acquisition activities will be commercially successful.ability to continue as a going concern.

Substantial expenditures are required to acquire gold properties, to establish mineral reserves through drilling and analysis, to develop metallurgical processes to extract metal from the ore and to develop the mining and processing facilities and infrastructure at any site chosen for mining. We cannot be assured that any mineral reserves or mineral resources acquired, established or discovered will be in sufficient quantities to justify commercial operations or that the funds invested in them will ever be recovered.  

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We face intense competition in the mining industry.

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The mining industry is intensely competitive in all of its phases. Some of our competitors are much larger, established mining companies with greater financial and technical resources than ours. We compete with other mining companies for attractive mining claims,properties, for capital, for equipment and supplies, for outside services and for qualified managerial and technical employees.

If we are unableAccess to acquire attractive mining claims we could lose an opportunity to improve our business. Competition for capital recently reduced the amount of capital availablefinancing, equipment, supplies, skilled labor and raised the associated cost.other resources may also be affected by competition from non-mining related commercial sectors. If we are unable to raise sufficient capital, ourwe will be unable to execute exploration and development programs or such programs may be reduced in scope or stopped completely, as done at our Guadalupe de los Reyes gold/silver project during 2013, for example.scope. Competition for equipment and supplies could result in shortage of necessary supplies and/or increased costs. Competition for outside services could result in increased costs, reduced quality of service and/or delays in completing services. If we cannot successfully retain or attract and retain qualified employees, our explorationability to advance the development of Mt Todd, to attract necessary financing, to meet all of our environmental and development programs mayregulatory responsibilities, or to take opportunities to improve our business, could be slowed down or suspended. negatively affected. This could have a material adverse effect on our business prospects, results of operations, cash flows and financial condition.

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The occurrence of events for which we are not insured may affect our cash flow and overall profitability.

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We maintain insurance policies that mitigate certain risks related to our operations. This insurance is maintained in amounts that we believe to be reasonable based on the circumstances surrounding each identified risk. However, we may elect to limit or not to have insurance for certain risks because of the high premiums associated with insuring those risks or for various other reasons; inreasons. In other cases, insurance may not be available for certain risks. We do not insure against political risk. Occurrence of events for which we are not insured adequately, or at all, could result in significant costslosses that could materially adversely affect our financial condition and our ability to fund our business.  A significant loss or liability could force us to reduce or terminate operations on a specific project.

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Currency fluctuations may adversely affect our costs.

Currency exchange rate fluctuations may affect the​

We have material property interests in Australia. Most costs that we incur at our projects as those costsin Australia are incurred in the local currency. The appreciation of the local currenciesAustralian dollar, if any, against the U.S. dollar effectively increases our costscost of explorationdoing business in Australia. This could have the effect of increasing the amount of capital required to continue to explore and development activities in U.S. dollar termsdevelop Mt Todd, and/or reducing the pace at our projects located outside of the United States.  As a result, our results of operations and financial condition could be adversely affected.  which it is developed.

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The Company is likely a “passive foreign investment company,” which will likely have adverse U.S. federal income tax consequences for U.S. shareholders.

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U.S. shareholders of shares of our common stock (the “Common Shares”)Common Shares should be aware that the Company believes it was classified as a PFIC duringpassive foreign investment company (“PFIC”) up to and including the taxable year ended December 31, 2013,2020, and based on current business plans and financial projections,

management believes there is a significant likelihood that the Company will be a PFIC during the current taxable year. If the Company is a PFIC for any year during a U.S. shareholder’s holding period, then such U.S. shareholder generally will be required to treat any gain realized upon a disposition of Common Shares, or any so-called “excess distribution” received on their Common Shares, as ordinary income, and to pay an interest charge on a portion of such gain or distributions, unless the shareholder makes a timely and effective “qualified electing fund” (“QEF Election”) or a “mark-to-market” election with respect to the Common Shares. A U.S. shareholder who makes a QEF Election generally must report on a current basis its share of the net capital gain and ordinary earnings for any year in which the Company is PFIC, whether or not the Company distributes any amounts to its shareholders. However, U.S. shareholders should be aware that there can be no assurance that the Company will satisfy record keeping requirements that apply to a QEF Election, or that the Company will supply U.S. shareholders with information that such U.S. shareholders require to report under the QEF Election rules, in event that the Company is a PFIC and a U.S. shareholder wishes to make a QEF Election. Thus, U.S. shareholders may not be able to make a QEF Election with respect to their Common Shares. A U.S. shareholder who makes the mark-to-market election generally must include as ordinary income each year the excess of the fair market value of the Common Shares over the taxpayer’s basis therein. This paragraph is qualified in its entirety by the discussion below under the headingin “Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities - “Certain U.S. Federal Income Tax Considerations.Considerations for U.S. Residents.” Each U.S. shareholder should consult his or her own tax advisor regarding the U.S. federal, U.S. state and local, and foreign tax consequences of the PFIC rules and the acquisition, ownership, and disposition of Common Shares.

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Certain directors and officers may serve as directors and officers of other companies in the natural resources sector.

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While there are no known existing or potential conflicts of interest between Vista and any of its directors or officers, certain of the directors and officers do or may serve as directors and officers of other natural resource companies and therefore it is possible that a conflict may arise between their duties as a director or officer of Vista and their duties as a director or officer of such other companies. The directors and officers of Vista are aware of the existence of laws governing accountability of directors and officers for corporate opportunity and disclosure of conflicts of interest. Should any director or officer breach the duties imposed upon them by applicable laws, such actions or inactions could have a material adverse effect on our business prospects, results of operations, cash flows, financial condition and corporate reputation.

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Direct and indirect consequences of the COVID-19 pandemic may have material adverse consequences.

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The COVID-19 pandemic is having a material adverse effect on the global economy, which has impacted the natural resource sector and Vista. Vista is incurring ongoing costs while certain corporate objectives, including efforts to seek a strategic development partner, are delayed. If a significant portion of our workforce becomes unable to work or travel to our operations due to illness or state or federal government restrictions (including travel restrictions, “shelter-in-place” and similar orders), we may be forced to reduce or suspend activities at Mt Todd or our offices, which could limit currently ongoing activities. Illnesses or government restrictions, including the closure of national borders, related to COVID-19 also may disrupt the supply of raw goods, equipment, supplies and services upon which our operations rely. These conditions could require working capital not previously anticipated, which could adversely affect our liquidity and ability to source additional working capital on reasonable terms. Extended delays would continue to affect

our liquidity and capital resources and might ultimately have a material adverse effect on both short-term and long-term financial position and results of operations. To the extent the COVID-19 pandemic adversely affects our business and financial results, it could also have the effect of heightening many of the other risks described in this “Risk Factors” section, including those relating to our operations and financial condition. Because of the highly uncertain and dynamic nature of events relating to the COVID-19 pandemic, it is not currently possible to estimate the impact of the pandemic on our business. However, these effects could have a material impact on our operations, and we will continue to monitor the COVID-19 situation closely.

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There may be limited liquidity for our Warrants.

Lack of Public Market.

Neither the Warrants, Subscription Receipts or Units have a public market history.  No assurance can be made that an active trading market for these securities will develop in the future, and the Company does not expect that an active trading market will develop.  There is no intentionmarket through which the Warrants from our July 2021 Offering may be sold, and we do not intend to apply to list the Warrants Subscription Receiptson the TSX or Units on any stock exchange.  The lack of public market forNYSE American. It is not possible to predict the price at which the Warrants Subscription Receipts and Units may inhibit purchasers’ ability to resell these securities.  In addition, the lack of public market may affect the pricing of the Warrants, Subscription Receipts and Unitswill trade in the secondary market or whether such market will be liquid or illiquid. To the transparency and availabilityextent Warrants are exercised, the number of trading prices ofWarrants outstanding will decrease, resulting in diminished liquidity for such securities,remaining outstanding Warrants. A decrease in the liquidity of such securities andthe Warrants may cause, in turn, an increase in the volatility associated with the price of the Warrants. To the extent of regulationthat the Warrants become illiquid, a holder of the Company.Warrants may have to exercise such Warrants to realize value, if any.

Holders of Warrants from our July 2021 Offering will have no rights as a shareholder with respect to their Warrants until they exercise their Warrants and acquire our Common Shares, except as set forth in the Warrants.

Until a holder of Warrants acquires Common Shares upon exercise of such Warrants, such holder will have no rights with respect to the Common Shares underlying such Warrants, except as set forth in the Warrants. Upon exercise of Warrants, a holder will be entitled to exercise the rights of a shareholder only as to matters for which the record date occurs after the exercise date.

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Industry Risks

Cost inflation​

Our share price may be volatile and your investment in our Common Shares could negativelysuffer a decline in value.

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Broad market and industry factors may adversely affect the long-term viabilityprice of our industry.

Operating costs within the gold mining industry have been increasing dramatically in recent years.   Deepening political unrestCommon Shares, regardless of our actual operating performance. Factors that could cause fluctuation in the Middle Eastprice of our Common Shares may include, among other things:

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In the past, securities class action litigation has often been instituted against companies following periods of volatility in their stock price. This type of litigation could result in substantial costs to us and North Africa, strong economic growth in China, Indiadivert our management’s attention and other developing economies could have the effect of constraining supplies of oil and other commodities, which could force related prices higher. A similar trend in labor costs has been observed, resulting mainly from a shortage of skilled labor andresources.

growing pressure for the extractive industries to provide compensation commensurate with higher metals prices.  There is also a growing trend for governments to expect more income from their natural resources in the form of increased royalties, taxes and fees. These factors undermine the long-term viability of the mining industry generally, and potentially reduce the availability of, and/or increase the cost of, financing for new mining projects.  ​

Calculations of mineral reserves and mineral resources are estimates only and subject to uncertainty.

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The estimating of mineral reserves and mineral resources is an imprecise process and the accuracy of such estimates is a function of the quantity and quality of available data, the assumptions used and judgments made in interpreting engineering and geological information and estimating future capital and operating costs. There is significant uncertainty in any reserve or resource estimate, and the economic results of mining an orea mineral deposit may differ materially from the estimates.estimates as additional data are developed or interpretations change.

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Estimated mineral reserves and mineral resources may be materially affected by other factors.

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In addition to uncertainties inherent in estimating mineral reserves and mineral resources, other factors may adversely affect estimated mineral reserves and mineral resources. Such factors may include but are not limited to metallurgical, environmental, permitting, legal, title, taxation, socio-economic, marketing, political, gold prices, and capital and operating costs. Any of these or other adverse factors may reduce or eliminate estimated mineral reserves and mineral resources and could have a material adverse effect on our business, prospects, results of operations, cash flows, financial condition and corporate reputation.

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Feasibility and other studies are estimates only and subject to uncertainty.

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Feasibility studies are used to determine the economic viability of an ore deposit, as are pre-feasibilitypreliminary feasibility studies and preliminary economic assessments. Feasibility studies are the most detailed studies and reflect a higher level of confidence in the estimated production rates, and capital and operating costs. Generally accepted levels of confidence are plus or minus 15% for feasibility studies, plus or minus 25-30% for pre-feasibilitypreliminary feasibility studies and plus or minus 35-40% for preliminary economic assessments. Under S-K 1300, in an initial assessment that includes a cash flow analysis, operating and capital cost estimates must have an accuracy level of at least approximately ±50% and a contingency level of no greater than 25%, in a pre-feasibility study, operating and capital cost estimates must, at a minimum, have an accuracy level of approximately ±25% and a contingency range not exceeding 15%, and in a feasibility study operating and capital cost estimates must, at a minimum, have an accuracy level of approximately ±15% and a contingency range not exceeding 10%. These levelsthresholds reflect the levels of confidence that exist at the time the study is completed. Subsequent changes to metal prices, foreign exchange rates (if applicable), reclamation requirements, operating and capital costs may cause actual results of economic viability to differ materially from these estimates. Results of subsequent Mt Todd prefeasibility or final feasibility studies may be less favorable than the current prefeasibility study.

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Mining companies are increasingly required to consider and provide benefits to the communities and countries in which they operate, and are subject to extensive environmental, health and safety laws and regulations.

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As a result of public concern about the real or perceived detrimental effects of economic globalization and global climate impacts, businesses in general and the mining industry in particular face increasing public scrutiny of their activities. These businesses are under pressure to demonstrate that as they seek to generate satisfactory returns on investment to shareholders, other stakeholders, including employees, governments, indigenous peoples, communities surrounding operations and the countries in which they operate, benefit and will continue to benefit from their commercial activities. The potential consequences of these pressures include reputational damage, legal suits, increased costs, increased social investment obligations, difficulty in acquiring permits, and increased taxes and royalties payable to governments and communities.

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Mining exploration, development and operating activities are inherently hazardous.

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Mineral exploration involves many risks that even a combination of experience, knowledge and careful evaluation may not be able to overcome. Operations in which we have direct or indirect interests will be subject to all the hazards and risks normally incidental to exploration, development and production of gold and other metals, any of which could result in work stoppages, damage to property, physical harm and possible environmental damage. The nature of these risks is such that liabilities might exceed any liability insurance policy limits. It is also possible that the liabilities and hazards might not be insurable, or, we could elect not to be insured against such liabilities due to high premium costs or other reasons, or our insurance for a particular event or circumstance might be insufficient, in which event we could incur significant costs that could have a material adverse effect on our business prospects, results of operations, cash flows, financial condition and corporate reputation.

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Regulations and pending legislation involving climate change could result in increased operating costs.

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Gold production is energy intensive, resulting in a significant carbon footprint. A number of governments and/or governmental bodies have introduced or are contemplating regulatory changes in response to various climate change interest groups and the potential impact of climate change. For example, Australia passedThe industry is also facing increasing social pressure driven by non-governmental entities related to the Clean Energy Act in 2011 that establishes a mechanism to combatpotential impact of climate change by imposing a carbon tax on greenhouse gas emissions and encourages investment in clean energy.change. This type of legislation and possible future legislation and increased regulation regarding climate change could impose significant costs related to increased energy requirements, capital equipment, environmental monitoring and reporting and other costs to comply with such regulations.

SPECIAL NOTE REGARDING FORWARD-LOOKING INFORMATION​

Pending initiatives involving taxation could result in increased tax and operating costs.

This ProspectusThere is growing attention from the media and any documents that are incorporated by reference as set forth under “Documents Incorporated By Reference”, contains “forward-looking statements” within the meaningpublic on perceived international tax avoidance techniques which could result in escalating rates of poverty, inequality and unemployment in host countries. Initiatives like the United States Private Securities Litigation Reform Act of 1995Base Erosion and “forward-looking information” under Canadian securities laws, that are intended to be coveredProfit Shifting project being led by the safe harbor createdOrganization for Economic Cooperation and Development aim to reform the system of international taxation to minimize international tax avoidance techniques. This initiative and possible future initiatives could result in increased tax expense and related compliance costs for Mt Todd or other future mining operations.

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Newly adopted rules regarding mining property disclosure by such legislation.  All statements, other than statements of historical facts, includedcompanies reporting with the SEC may result in this Prospectus,increased operating and documents incorporated herein by reference andlegal costs.

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On October 31, 2018, the SEC adopted new rules to modernize mining property disclosure in reports filed with the SEC in order to harmonize SEC disclosure requirements with international standards. The Company is not required to provide disclosure on its mineral properties under the new rules until its 10-K for the fiscal year beginning January 1, 2021, subject to certain exceptions which may require compliance earlier. The Company currently reports mineral resources and reserves in compliance with securities commissions and other similar authorities in Canada that address activities, events or developments thatNI 43-101. Because the Company expects or anticipates will or may occur infiles its reports with the future are forward-looking statements and forward-looking information, including, but not limited to, such things as those listed below:

Forward-looking statements and forward-looking information have been based upon our approved business plans, exploration and assay results, mineral resource and reserve estimates and results of preliminary economic assessments, pre-feasibility studies and feasibility studiesSEC on our projects, if any, current market conditions and project development plans. The words “estimate”, “plan”, “anticipate”, “expect”, “intend”, “believe”, “will”, “may” and similar expressions are intended to identify forward-looking statements and forward-looking information. These statements involve known and unknown risks, uncertainties, assumptions and other factors which may cause or actual results, performance or achievements to be materially different from any results, performance or achievements expressed or implied by such forward-looking statements and forward-looking information.  These factors include risks such as:

For a more detailed discussion of such risks and other important factors that could cause actual results to differ materially from those in such forward-looking statements and forward-looking information, please see “Risk Factors” in this Prospectus.  AlthoughU.S. domestic forms, under the new rules, the Company has attemptedwill be required to identify important factors that could cause actual results to differ materially from those described in forward-looking statementscomply with the new SEC mining property disclosure requirements and forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurances that these statements will prove to be accurate as actual results and future events could differ materially from those anticipated in the statements. Except as required by law, the Company assumes no obligation to publicly update any forward-looking statements and forward-looking information, whether as a result of new information, future events or otherwise.

CAUTIONARY NOTE FOR U.S. INVESTORS REGARDING RESERVE AND RESOURCE ESTIMATES

The terms “mineral reserve”, “proven mineral reserve” and “probable mineral reserve” are Canadian mining terms as definedmake disclosure in accordance with NI 43-101 in the reports it files with the SEC. This will require the preparation of two separate technical reports under the two reporting regimes and will increase costs to the Company going forward. Further, while the Company currently utilizes its reports as filed with the SEC in meeting its reporting obligations in Canada, since its future reports have mining property disclosure that is not NI 43-101 compliant, the Company will likely have to prepare separate reports or a supplemental NI 43-101 mining property report to meet its reporting obligations in Canada. Such changes to the Company’s reporting requirements could result in increased compliance costs.

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General Risks

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The Company may experience cybersecurity threats.

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Vista relies on secure and adequate operations of information technology systems in the conduct of its operations. Access to and security of the information technology systems are critical to Vista’s operations. To Vista’s knowledge, it has not experienced any material losses relating to disruptions to its information technology systems. Vista has implemented policies, controls and practices to manage and safeguard Vista and its stakeholders from internal and external cybersecurity threats and to comply with changing legal requirements and industry practice. Given that cyber risks cannot be fully mitigated and the Canadian Instituteevolving nature of Mining, Metallurgythese threats, Vista cannot assure that its information technology systems are fully protected from cybercrime or that the systems will not be inadvertently compromised, or without failures or defects. Potential disruptions to Vista’s information technology systems, including, without limitation, security breaches, power loss, theft, computer viruses, cyber-attacks, natural disasters, and Petroleum (the ”CIM”)—CIM Definition Standardsnoncompliance by third party service providers and inadequate levels of cybersecurity expertise and safeguards of third party information technology service providers, may adversely affect the operations of Vista as well as present significant costs and risks including, without limitation, loss or disclosure of confidential, proprietary, personal or sensitive information and third party data, material adverse effect on Mineral Resourcesits financial performance, compliance with its contractual obligations, compliance with applicable laws, damaged reputation, remediation costs, potential litigation, regulatory enforcement proceedings and Mineral Reserves, adoptedheightened regulatory scrutiny.

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The Company is subject to anti-bribery and anti-corruption laws.

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Vista’s operations are governed by, the CIM Council, as amended. These definitions differ from the definitionsand involve interactions with, many levels of government in the SEC Industry Guide 7 under Regulation S-K of the U.S. Securities Act of 1933 (the “U.S. Securities Act”). Under SEC Industry Guide 7 standards, a “final” or “bankable” feasibility studyseveral countries. Vista is required to report reserves,comply with anti-corruption and anti-bribery laws in the three-year historical average price is usedcountries in any reserve or cash flow analysis to designate reserveswhich we conduct our business. In recent years, there has been a general increase in both the frequency of enforcement and the primary environmental analysisseverity of penalties under such laws, resulting in greater scrutiny and punishment to companies convicted of violating anti-corruption and anti-bribery laws. Furthermore, a company may be found liable for violations by not only its employees,

but also by its contractors and third-party agents. Although we have adopted internal control policies to mitigate such risks, there can be no assurance that our internal control policies and procedures will always protect us from recklessness, fraudulent behavior, dishonesty or report mustother inappropriate acts committed by our affiliates, employees or agents and such measures may not always be filedeffective in ensuring that we, our employees, contractors or third-party agents will comply strictly with the appropriate governmental authority.

In addition, the terms “mineral resource”, “measured mineral resource”, “indicated mineral resource” and “inferred mineral resource”such laws. If we find ourselves subject to an enforcement action or are defined in and requiredfound to be disclosed by NI 43-101; however, these terms are not defined terms under SEC Industry Guide 7in violation of such laws, this could lead to civil and are normally not permitted to be used in reportscriminal fines and registration statements filed with the SEC. Investors are cautioned not to assume that any partpenalties, investigation and litigation, and loss of operating licenses or all of mineral deposits in these categories will ever be converted into reserves. “Inferred mineral resources” have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all, or any part, of an inferred mineral resource will ever be upgraded to a higher category. Under Canadian rules, estimates of inferred mineral resources may not form the basis of feasibility or pre-feasibility studies, except in rare cases. Investors are cautioned not to assume that all or any part of an inferred mineral resource exists or is economically or legally mineable. Disclosure of “contained ounces”permits, resulting in a resourcematerial adverse effect on our reputation and results of operations.

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Our business is permittedsubject to evolving corporate governance and public disclosure under Canadian regulations; however,regulations that have increased both our compliance costs and the risk of noncompliance.

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We are subject to changing rules and regulations promulgated by a number of governmental and self-regulated organizations, including the British Columbia Securities Commission, the SEC, normally only permits issuers to report mineralization that does not constitute “reserves” by SEC standards as in place tonnage and grade without reference to unit measures.

Accordingly, information contained in this Prospectusthe TSX, the NYSE American, and the documents incorporatedFinancial Accounting Standards Board. These rules and regulations continue to evolve in scope and complexity and many new requirements have been created in response to laws enacted by reference herein and any Prospectus Supplement contain descriptions of our mineral deposits that may not be comparable to similar information made public by U.S. companies subject to the reporting and disclosure requirements under the United States federal securities lawsCongress, making compliance increasingly more difficult and the rulesuncertain, which could have an adverse effect on our reputation and regulations thereunderour stock price.

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DOCUMENTS INCORPORATED BY REFERENCE

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The SEC allows the Company to “incorporate by reference” information it files with the SEC. This means that the Company can disclose important information to you by referring you to those documents. Any information the Company references in this manner is considered part of this Prospectus. Information the Company files with the SEC after the date of this Prospectus will automatically update and, to the extent inconsistent, supersede the information contained in this Prospectus.

The following documents which have been filed by the Company with securities commissions or similar authorities in Canada and with the SEC, are specifically incorporated by reference into, and form an integral part of, this Prospectus.

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The Company presents its consolidated financial statements in United States dollars.  All references in this Prospectus to “dollars” and  “$” are to United States dollars and all references to “C$” are to Canadian dollars, unless otherwise noted.  Except as otherwise indicated, all financial statements and financial data contained in, or incorporated by reference into, this Prospectus have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”), which differ in certain significant respects from International Financial Reporting Standards (“IFRS”).

The following table sets forth, for each period indicated, the exchange rates of the Canadian dollar to the U.S. dollar for the end of each period indicated and the high, low and average exchange rates for each of such periods (such rates, which are expressed in Canadian dollars are based on the noon buying rates for U.S. dollars reported by the Bank of Canada).

On July 8, 2014, the noon buying rate reported by the Bank of Canada was $1.00 = C$1.0674.

USE OF PROCEEDS

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Unless otherwise indicated in the applicable Prospectus Supplement, the net proceeds from the sale of the Securities will be used by the Company to fundfor development of existing or acquired mineral properties and may also be used for acquisitions, working capital requirements, to repay indebtedness outstanding from time to time if any, or for other general corporate purposes, which include costs of corporate development initiatives, ongoing regulatory, legal and accounting expenses, and management and administrative expenses.purposes.  The Company may, from time to time, issue Common Shares or other securities otherwise than through the offering of Securities pursuant to this Prospectus.

In 2012, the Company raised $24.5 million net proceeds in two equity financings.  The actual use of proceeds was consistent with the intended use of proceeds at the time of the completion of the financings.  The proceeds were principally used to fund ongoing technical evaluations and engineering studies (including advancing a feasibility study on the Mt Todd gold project in Australia), exploration and resource conversion drilling programs at the Mt Todd gold project, preparation and filing of an environmental impact statement for the Mt Todd gold project and treatment of contaminated water at the Mt Todd gold project.  In addition, the Company completed and filed a preliminary economic assessment on the Guadalupe de los Reyes gold/silver project in Mexico.​

MARKET FOR COMMON SHARES AND WARRANTS

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Market and Trading Symbol of Common Shares

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The Common Shares of Vista Gold are listed on the NYSE MKTAmerican and the TSXToronto Stock Exchange under the trading symbol VGZ.  The majority of the trading of the Common Shares takes place on the NYSE MKT.  The following table sets out the reported high and low sale prices and volume of sales traded on the NYSE MKT and on the TSX by month during“VGZ”. On November 18, 2021, the last 12-month period before the date hereof.

On July 8, 2014, the closingreported sale price of the Common Shares of Vista on the NYSE MKTAmerican was $0.74 and on the TSXToronto Stock Exchange was $0.50 and C$0.53 per Common Share, respectively. 

Certain warrants to purchase0.94, there were 117,189,232 Common Shares (the “Listed Warrants”) of the Company are listed on the TSX under the symbol VGZ.WT.U.

The following table sets out the reported high and low sale prices and volume of sales traded on the TSX by month since the Listed Warrants began trading.

On July 8, 2014, the closing price of the Listed Warrants on the TSX was C$0.005 per Listed Warrant.

PRIOR SALES

The following table sets forth for the 12 month period prior to the date of this Prospectus, details of the price at which securities have been issued by us, the number and type of securities issued and the date on which such securities were issued: outstanding, and we had approximately 232 registered shareholders of record.

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CHANGES TO CONSOLIDATED CAPITALIZATION

The following table sets forth the consolidated capitalization of the Company as at the dates indicated.  The table should be read in conjunction with the consolidated financial statements of the Company for the year ended December 31, 2013 and management’s discussion and analysis thereof, which are incorporated by reference herein.

CERTAIN INCOME TAX CONSIDERATIONS

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The applicable Prospectus Supplement will describe certain Canadian federal income tax consequences to investors described therein of acquiring Securities including, in the case of investors who are not residents of Canada for purposes of the Income Tax Act (Canada), whether payment of any amount in respect of a security will be subject to Canadian non-resident withholding tax.

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The applicable Prospectus Supplement will also describe certain U.S. federal income tax consequences of the acquisition, ownership and disposition of Securities by an initial investor who is a U.S. person (within the meaning of the U.S. Internal Revenue Code), if applicable, including, to the extent applicable, any such consequences relating to Securities payable in a currency other than the U.S. dollar, issued at an original issue discount for U.S. federal income tax purposes or containing early redemption provisions or other special terms.

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DESCRIPTION OF COMMON SHARES

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The Company is authorized to issue an unlimited number of Common Shares, without par value, of which 82,275,217117,189,232 are issued and outstanding as at the date of this Prospectus.  There are 15,219,802 Listed Warrants

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Under our Stock Option Plan (the “Plan”), our Long-Term Equity Incentive Plan (the “LTIP”) and our Deferred Share Unit Plan (the “DSU Plan”), we may grant options, RSUs or restricted stock awards, and/or DSUs to acquire 15,219,802our directors, officers, employees and consultants.  The combined maximum number of our Common Shares which expire on October 22, 2015 (subjectthat may be reserved for issuance under the Plan, the LTIP and the DSU Plan is a variable number equal to any acceleration event).  The Listed Warrants were issued on December 15, 2010 and each Listed Warrant can be exercised to acquire one Common Share at a purchase price $5.00 until the expiry10% of the Listed Warrant.  There are 2,666,666 unlisted warrants which can be exercised to acquire 2,666,666issued and outstanding Common Shares on a non-diluted basis. Options, RSUs and DSUs under the Plan, LTIP and DSU Plan, respectively, are granted from time to time at a purchase pricethe discretion of between $3.18the Board, with vesting periods and $3.60 per share, which expire on July 27, 2014 and 2,091,275 unlisted warrants which can be exercised to acquire 2,091,275 Common Shares at a purchase price of $3.30 per share which expire on December 21, 2014.  other terms as determined by the Board.  There are options outstanding to purchase up to 2,197,5001,367,000 Common Shares at prices ranging from $0.36$0.51 to $3.67.$0.77. There are 2,594,4641,998,339 restricted stock units and 930,000 deferred share units outstanding.  Upon the vesting conditions being met a holder of

restricted stock units or deferred share units is entitled to receive one Common Share for each restricted stock unit held. There are 7,408,101 warrants outstanding to purchase up to 7,408,101 Common Shares at a price of $1.25 each.

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The Company may issue Common Shares independently or together with Warrants or Subscription Receipts, and the Common Shares may be attached to or separately from such securities.

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Holders of Common Shares are entitled to receive notice of and to attend any meetings of shareholders of the Company and at any meetings of shareholders to one vote for each Common Share held, to receive dividends as and when declared by the directors of the Company and to receive a pro rata share of the assets of the Company available for distribution to the shareholders in the event of the liquidation, dissolution or winding-up of the Company.  There are no pre-emptive, conversion or redemption rights attached to the Common Shares.

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DESCRIPTION OF WARRANTS

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The following description, together with the additional information the Company may include in any applicable Prospectus Supplements, summarizes the material terms and provisions of the Warrants that the Company may offer under this Prospectus, which will consist of Warrants to purchase Common Shares and may be issued in one or more series.  Warrants may be offered independently or together with Common Shares or Subscription Receipts offered by any Prospectus Supplement, and may be attached to or separate from those Securities.  While the terms the Company has summarized below will apply generally to any Warrants that it may offer under this Prospectus, the Company will describe the particular terms of any series of Warrants that it may offer in more detail in the applicable Prospectus Supplement.  The terms of any Warrants offered under a Prospectus Supplement may differ from the terms described below.

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General

General

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Warrants will be issued under and governed by the terms of one or more warrant indentures (each a “Warrant Indenture”) between the Company and a warrant trustee (the “Warrant Trustee”) that the Company will name in the relevant Prospectus Supplement.Supplement or the terms of a stand-alone warrant certificate (“Warrant Certificate”) if a Warrant Indenture is not used.  Each Warrant Trustee will be a financial institution organized under the laws of Canada or any province thereof and authorized to carry on business as a trustee.

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This summary of some of the provisions of the Warrants is not complete.  The statements made in this Prospectus relating to any Warrant Indenture, Warrant Certificate and Warrants to be issued under this Prospectus are summaries of certain anticipated provisions thereof and do not purport to be complete and are subject to, and are qualified in their entirety by reference to, all provisions of the applicable Warrant Indenture.Indenture or Warrant Certificate.  Prospective investors should refer to the Warrant Indenture or Warrant Certificate relating to the specific Warrants being offered for the complete terms of the Warrants. The Company urges you to read the applicable Prospectus Supplement related to the applicable Warrants that the Company sells under this prospectus,Prospectus, as well as the complete Warrant Indenture andand/or Warrant Certificate.  In the United States, the Company will file as exhibits to the registration statement of which this Prospectus is a part, or will incorporate by reference from a current report on Form 8-K that the Company files with the SEC, any Warrant Indenture and/or Warrant Certificate describing the terms and conditions of Warrants the Company is offering before the issuance of such Warrants. In Canada the Company will file on SEDAR a copy of any Warrant Indenture after the Company has entered into it.

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Warrants

Warrants

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The particular terms of each issue of Warrants will be described in the applicable Prospectus Supplement. This description will include, where applicable:

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Rights of Holders Prior to Exercise

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Prior to the exercise of their Warrants, holders of Warrants will not have any of the rights of holders of the Common Shares issuable upon exercise of the Warrants.

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Exercise of Warrants

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Each Warrant will entitle the holder to purchase the Common Shares that the Company specifies in the applicable Prospectus Supplement at the exercise price that the Company describes therein.  Unless the Company otherwise

specifies in the applicable Prospectus Supplement, holders of the Warrants may exercise the Warrants at any time up to the specified time on the expiration date that the Company sets forth in the applicable Prospectus Supplement.  After the close of business on the expiration date, unexercised warrants will become void.

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Holders of the Warrants may exercise the Warrants by delivering the Warrant Certificate representing the Warrants to be exercised together with specified information, and paying the required amount to the Warrant Trustee or the Company if there is no Warrant Trustee in immediately available funds, as provided in the applicable Prospectus Supplement.  The Company will set forth on the Warrant Certificate and in the applicable Prospectus Supplement the information that the holder of the Warrant will be required to deliver to the Warrant Trustee or the Company if there is no Warrant Trustee.

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Upon receipt of the required payment and the Warrant Certificate properly completed and duly executed at the corporate trust office of the Warrant Trustee or the principal offices of the Company if there is no Warrant Trustee or any other office indicated in the applicable Prospectus Supplement, the Company will issue and deliver the Common Shares purchasable upon such exercise.  If fewer than all of the Warrants represented by the Warrant Certificate are exercised, then the Company will issue a new Warrant Certificate for the remaining amount of Warrants.  If the Company so indicates in the applicable Prospectus Supplement, holders of the Warrants may surrender securities as all or part of the exercise price for Warrants.

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Anti-Dilution

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The Warrant Indenture and/or Warrant Certificate will specify that upon the subdivision, consolidation, reclassification or other material change of the Common Shares or any other reorganization, amalgamation, merger or sale of all or substantially all of the Company’s assets, the Warrants will thereafter evidence the right of the holder to receive the securities, property or cash deliverable in exchange for, or on the conversion of, or in respect of, the Common Shares to which the holder of a Common Share would have been entitled immediately after such event.  Similarly, any distribution to all or substantially all of the holders of Common Shares of rights, options, warrants, evidences of indebtedness or assets will result in an adjustment in the number of Common Shares to be issued to holders of Warrants.

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Global Securities

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The Company may issue Warrants in whole or in part in the form of one or more global securities, which will be registered in the name of and be deposited with a depositary, or its nominee, each of which will be identified in the applicable Prospectus Supplement.  The global securities may be in temporary or permanent form. The applicable Prospectus Supplement will describe the terms of any depositary arrangement and the rights and limitations of owners of beneficial interests in any global security. The applicable Prospectus Supplement will describe the exchange, registration and transfer rights relating to any global security.

Modifications

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The Warrant Indenture and/or Warrant Certificate will provide for modifications and alterations to the Warrants issued thereunder by way of a resolution of holders of Warrants at a meeting of such holders or a consent in writing from such holders.  The number of holders of Warrants required to pass such a resolution or execute such a written consent will be specified in the Warrant Indenture.Indenture and/or Warrant Certificate.

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The Company may amend any Warrant Indenture, Warrant Certificate and the Warrants, without the consent of the holders of the Warrants, to cure any ambiguity, to cure, correct or supplement any defective or inconsistent provision, or in any other manner that will not materially and adversely affect the interests of holders of outstanding Warrants.

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DESCRIPTION OF SUBSCRIPTION RECEIPTS

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The Company may issue Subscription Receipts, which will entitle holders to receive upon satisfaction of certain release conditions and for no additional consideration, Common Shares, Warrants or a combination thereof.  Subscription Receipts will be issued pursuant to one or more subscription receipt agreements (each, a “Subscription Receipt Agreement”), each to be entered

into between the Company and an escrow agent (the “Escrow Agent”), which will establish the terms and conditions of the Subscription Receipts.  Each Escrow Agent will be a financial institution organized under the laws of Canada or a province thereof and authorized to carry on business as a trustee.  In the United States, the Company will file as exhibits to the registration statement of which this Prospectus is a part, or will incorporate by reference from a current report on Form 8-K that the Company files with the SEC, any Subscription Receipt Agreement describing the terms and conditions of Subscription Receipts the Company is offering before the issuance of such Subscription Receipts.  In Canada the Company will file on SEDAR a copy of any Subscription Receipt Agreement after the Company has entered into it.

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The following description sets forth certain general terms and provisions of Subscription Receipts and is not intended to be complete.  The statements made in this Prospectus relating to any Subscription Receipt Agreement and Subscription Receipts to be issued thereunder are summaries of certain anticipated provisions thereof and are subject to, and are qualified in their entirety by reference to, all provisions of the applicable Subscription Receipt Agreement and the Prospectus Supplement describing such Subscription Receipt Agreement. The Company urges you to read the applicable Prospectus Supplement related to the particular Subscription Receipts that the Company  sells under this Prospectus, as well as the complete Subscription Receipt Agreement.

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The Prospectus Supplement relating to any Subscription Receipts the Company offers will describe the Subscription Receipts and include specific terms relating to their offering.  All such terms will comply with the requirements of the TSX and NSYE MKTapplicable securities exchanges relating to Subscription Receipts.  If underwriters or agents are used in the sale of Subscription Receipts, one or more of such underwriters or agents may also be parties to the Subscription Receipt Agreement governing the Subscription Receipts sold to or through such underwriters or agents.

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General

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The Prospectus Supplement and the Subscription Receipt Agreement for any Subscription Receipts the Company offers will describe the specific terms of the Subscription Receipts and may include, but are not limited to, any of the following:

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The holders of Subscription Receipts will not be shareholders of the Company.  Holders of Subscription Receipts are entitled only to receive Common Shares, Warrants or a combination thereof on exchange of their Subscription Receipts, plus any cash payments provided for under the Subscription Receipt Agreement, if the Release Conditions are satisfied.  If the Release Conditions are not satisfied, the holders of Subscription Receipts shall be entitled to a refund of all or a portion of the subscription price therefor and all or a portion of the pro rata share of interest earned or income generated thereon, as provided in the Subscription Receipt Agreement.

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Escrow

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The Escrowed Funds will be held in escrow by the Escrow Agent, and such Escrowed Funds will be released to the Company (and, if the Subscription Receipts are sold to or through underwriters or agents, a portion of the Escrowed Funds may be released to such underwriters or agents in payment of all or a portion of their fees in connection with the sale of the Subscription Receipts) at the time and under the terms specified by the Subscription Receipt Agreement.  If the Release Conditions are not satisfied, holders of Subscription Receipts will receive a refund of all or a

portion of the subscription price for their Subscription Receipts plus their pro rata entitlement to interest earned or income generated on such amount, in accordance with the terms of the Subscription Receipt Agreement.  Common Shares or Warrants may be held in escrow by the Escrow Agent, and will be released to the holders of Subscription Receipts following satisfaction of the Release Conditions at the time and under the terms specified in the Subscription Receipt Agreement.

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Anti-Dilution

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The Subscription Receipt Agreement will specify that upon the subdivision, consolidation, reclassification or other material change of the Common Shares or Warrants or any other reorganization, amalgamation, merger or sale of all or substantially all of the Company’s assets, the Subscription Receipts will thereafter evidence the right of the holder to receive the securities, property or cash deliverable in exchange for, or on the conversion of, or in respect of, the Common Shares or Warrants to which the holder of a Common Share or Warrant would have been entitled immediately after such event.  Similarly, any distribution to all or substantially all of the holders of Common Shares of rights, options, warrants, evidences of indebtedness or assets will result in an adjustment in the number of Common Shares to be issued to holders of Subscription Receipts whose Subscription Receipts entitle the holders thereof to receive Common Shares.  Alternatively, such securities, evidences of indebtedness or assets may, at the option of the Company, be issued to the Escrow Agent and delivered to holders of Subscription Receipts on exercise thereof.  The Subscription Receipt Agreement will also provide that if other actions of the Company affect the Common Shares or Warrants, which, in the reasonable opinion of the directors of the Company, would materially affect the rights of the holders of Subscription Receipts and/or the rights attached to the Subscription Receipts, the number of Common Shares or Warrants which are to be received pursuant to the Subscription Receipts shall be adjusted in such manner, if any, and at such time as the directors of the Company may in their discretion reasonably determine to be equitable to the holders of Subscription Receipts in such circumstances.

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Rescission

Rescission

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The Subscription Receipt Agreement will also provide that any misrepresentation in this Prospectus, the Prospectus Supplement under which the Subscription Receipts are offered, or any amendment thereto, will entitle each initial purchaser of Subscription Receipts to a contractual right of rescission following the issuance of the Common Shares or Warrants to such purchaser entitling such purchaser to receive the amount paid for the Subscription Receipts upon surrender of the Common Shares or Warrants, provided that such remedy for rescission is exercised in the time stipulated in the Subscription Receipt Agreement.  This right of rescission does not extend to holders of Subscription Receipts who acquire such Subscription Receipts from an initial purchaser, on the open market or otherwise, or to initial purchasers who acquire Subscription Receipts in the United States.

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Global Securities

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The Company may issue Subscription Receipts in whole or in part in the form of one or more global securities, which will be registered in the name of and be deposited with a depositary, or its nominee, each of which will be identified in the applicable Prospectus Supplement.  The global securities may be in temporary or permanent form. The applicable Prospectus Supplement will describe the terms of any depositary arrangement and the rights and limitations of owners of

beneficial interests in any global security. The applicable Prospectus Supplement also will describe the exchange, registration and transfer rights relating to any global security.

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Modifications

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The Subscription Receipt Agreement will provide for modifications and alterations to the Subscription Receipts issued thereunder by way of a resolution of holders of Subscription Receipts at a meeting of such holders or a consent in writing from such holders.  The number of holders of Subscriptions Receipts required to pass such a resolution or execute such a written consent will be specified in the Subscription Receipt Agreement.

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The Company may amend the Subscription Receipt Agreement, without the consent of the holders of the Subscription Receipts, to cure any ambiguity, to cure, correct or supplement any defective or inconsistent provision, or in any other manner that will not materially and adversely affect the interests of holders of outstanding Subscription Receipts.

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DESCRIPTION OF UNITS

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The following description, together with the additional information the Company may include in any applicable Prospectus Supplements, summarizes the material terms and provisions of the Units that the Company may offer under this Prospectus.  While the terms the Company has summarized below will apply generally to any Units that the Company may offer under this Prospectus, the Company will describe the particular terms of any series of Units in more detail in the applicable Prospectus Supplement.  The terms of any Units offered under a Prospectus Supplement may differ from the terms described below.

The Company will enter into a form of unit agreement (“Unit Agreement”) between the Company and a unit agent (“Unit Agent”) that describes the terms and conditions of the series of Units the Company is offering, and any supplemental agreements, before the issuance of the related series of Units.  In the United States, the Company will file as exhibits to the registration statement of which this Prospectus is a part, or will incorporate by reference from a current report on Form 8-K that the Company files with the SEC, and in Canada the Company will file on SEDAR, the form of Unit Agreement that describes the terms and conditions of the series of Units the Company is offering, and any supplemental agreements, before the issuance of the related series of Units.

The following summary of material terms and provisions of the Units are subject to, and qualified in their entirety by reference to, all the provisions of the Unit Agreement and any supplemental agreements applicable to a particular series of Units.  The Company urges you to read the applicable Prospectus Supplements related to the particular series of Units that the Company sells under this Prospectus, as well as the complete Unit Agreement and any supplemental agreements that contain the terms of the Units.

General

General

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The Company may issue units comprising two or more of Common Shares, Warrants and Subscription Receipts in any combination.  Each Unit will be issued so that the holder of the Unit is also the holder of each security included in the Unit.  Thus, the holder of a Unit will have the rights and obligations of a holder of each included security.

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The Unit Agreement under which a Unit is issued may provide that the Securities included in the Unit may not be held or transferred separately, at any time or at any time before a specified date.

The Company will describe in the applicable Prospectus Supplement the terms of the series of Units, including:

The provisions described in this section, as well as those described under “Description of Common Shares”, “Description of Warrants” and “Description of Subscription Receipts” will apply to each Unit and to any Common Share, Warrant or Subscription Receipt included in each Unit, respectively.

Issuance in Series

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The Company may issue Units in such amounts and in numerous distinct series as the Company determines.

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Enforceability of Rights by Holders of Units

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Each Unit Agent will act solely as the Company’s agent under the applicable Unit Agreement and will not assume any obligation or relationship of agency or trust with any holder of any Unit.  A single bank or trust company may act as Unit Agent for more than one series of Units.  A Unit Agent will have no duty or responsibility in case of any default by the Company under the applicable Unit Agreement or Unit, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon the Company.  Any holder of a Unit may, without the consent of the related Unit Agent or the holder of any other Unit, enforce by appropriate legal action its rights as holder under any security included in the Unit.

The Company, the Unit Agents and any of their agents may treat the registered holder of any Unit Certificate as an absolute owner of the Units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the Units so requested, despite any notice to the contrary.

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PLAN OF DISTRIBUTION

General​

General

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The Company may offer and sell the Securities on a continuous or delayed basis, separately or together: (a) to one or more underwriters or dealers; (b) through one or more agents; or (c) directly to one or more other purchasers. The Securities offered pursuant to any Prospectus Supplement may be sold from time to time in one or more transactions at: (i) a fixed price or prices, which may be changed from time to time; (ii) market prices prevailing at the time of sale; (iii) prices related to such prevailing market prices; or (iv) other negotiated prices.  The Company may only offer and sell the Securities pursuant to a Prospectus Supplement during the 25‑month36-month period that this Prospectus, including any amendments hereto, remains effective.  The Prospectus Supplement for any of the Securities being offered thereby will set forth the terms of the offering of such Securities, including the type of Security being offered, the name or names of any underwriters, dealers or

agents, the purchase price of such Securities, the proceeds to the Company from such sale, any underwriting commissions or discounts and other items constituting underwriters’ compensation and any discounts or concessions allowed or re-allowed or paid to dealers.  Only underwriters so named in the Prospectus Supplement are deemed to be underwriters in connection with the Securities offered thereby.

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By Underwriters

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If underwriters are used in the sale, the Securities will be acquired by the underwriters for their own account and may be resold from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale.  Unless otherwise set forth in the Prospectus Supplement relating thereto, the obligations of underwriters to purchase the Securities will be subject to certain conditions, but the underwriters will be obligated to purchase all of the Securities offered by the Prospectus Supplement if any of such Securities are purchased.  The Company may agree to pay the underwriters a fee or commission for various services relating to the offering of any Securities.  Any such fee or commission will be paid out of the proceeds of the offering or the general corporate funds of the Company.

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By Dealers

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If dealers are used, and if so specified in the applicable Prospectus Supplement, the Company will sell such Securities to the dealers as principals.  The dealers may then resell such Securities to the public at varying prices to be determined by such dealers at the time of resale.  Any public offering price and any discounts or concessions allowed or re-allowed or paid to dealers may be changed from time to time.

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By Agents

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The Securities may also be sold through agents designated by the Company.  Any agent involved will be named, and any fees or commissions payable by the Company to such agent will be set forth, in the applicable Prospectus Supplement.  Any such fees or commissions will be paid out of the proceeds of the offering or the general corporate funds of the Company.  Unless otherwise indicated in the Prospectus Supplement, any agent will be acting on a best effortsbest-efforts basis for the period of its appointment.

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Direct Sales

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Securities may also be sold directly by the Company at such prices and upon such terms as agreed to by the Company and the purchaser.  In this case, no underwriters, dealers or agents would be involved in the offering.

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General Information

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Underwriters, dealers and agents that participate in the distribution of the Securities offered by this Prospectus may be deemed underwriters under the U.S. Securities Act, and any discounts or commissions they receive from us and any profit on their resale of the securities may be treated as underwriting discounts and commissions under the U.S. Securities Act.

With respect to the sale of Securities under this Prospectus and any Prospectus Supplement, the maximum commission or discount to be received by any member of the Financial Industry Regulatory Authority, Inc. or independent broker or dealer will not be greater than eight percent (8%).

Underwriters, dealers or agents who participate in the distribution of Securities may be entitled under agreements to be entered into with the Company to indemnification by the Company against certain liabilities, including liabilities under Canadian provincial and territorial and United States securities legislation, or to contribution with respect to payments which such underwriters, dealers or agents may be required to make in respect thereof.  Such underwriters, dealers or agents may be customers of, engage in transactions with, or perform services for, the Company in the ordinary course of business.

The Company may enter into derivative transactions with third parties, or sell securities not covered by this Prospectus to third parties in privately negotiated transactions. If the applicable Prospectus Supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this Prospectus and the applicable Prospectus Supplement, including in short sale transactions. If so, the third parties may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third parties in such sale transactions will be identified in the applicable Prospectus Supplement.

One or more firms, referred to as “remarketing firms,” may also offer or sell the Securities, if the Prospectus Supplement so indicates, in connection with a remarketing arrangement upon their purchase. Remarketing firms will

act as principals for their own accounts or as agents for us. These remarketing firms will offer or sell the Securities in accordance with the terms of the Securities. The Prospectus Supplement will identify any remarketing firm and the terms of its agreement, if any, with us and will describe the remarketing firm’s compensation. Remarketing firms may be deemed to be underwriters in connection with the Securities they remarket.

In connection with any offering of Securities (unless otherwise specified in the Prospectus Supplement), underwriters may over-allot or effect transactions which stabilize or maintain the market price of the Securities offered at a level above that which might otherwise prevail in the open market.  Such transactions may be commenced, interrupted or discontinued at any time.

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AUDITORS, TRANSFER AGENT AND REGISTRAR

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The auditors of the Company are Plante & Moran, PLLC, (“Plante Moran”), of Denver, Colorado, an Independent Registered Public Accounting Firm.

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The transfer agent and registrar for the Common Shares is Computershare Investor Services Inc. and the transfer agent and registrar for the Listed Warrants is Computershare Trust Company of Canada at the principal offices in Vancouver and Toronto.

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EXPERTS

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Information relating to the Company’s mineral properties in this Prospectus and the documents incorporated by reference herein has been derived from reports, statements or opinions prepared or certified by Tetra Tech, MM, Inc., Rex Clair Bryan, Anthony Clark, Thomas L. Dyer, April Hussey, Chris Johns, Deepak Malhotra, Zvonimir Ponos, David M. Richers, Vicki J. Scharnhorst, Jessica I. Monasterio, Keith Thompson, and John W. Rozelle, and this information has been included in

reliance on such companies and persons’ expertise. Each of Rex Clair Bryan, Anthony Clark, Thomas L. Dyer, April Hussey, Chris Johns, Deepak Malhotra, Zvonimir Ponos, David M. Richers, Vicki J. Scharnhorst, Jessica I. Monasterio, Keith Thompson, and John W. Rozelle is a qualified person as such term is defined NI 43-101.

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None of Tetra Tech, Inc., John Rozelle, Rex Clair Bryan, Anthony Clark, Thomas L. Dyer, Edwin Lips,April Hussey, Chris Johns, Deepak Malhotra, Erik Spiller, Nick Michael,Zvonimir Ponos, David M. Richers, Patrick Donlon, Vicki J. Scharnhorst, Jessica I. Monasterio, Keith Thompson, and Lachlan Walker,John W. Rozelle, and this information has been included in reliance on such companies and persons’ expertise. Each of Rex Clair Bryan, Anthony Clark, Thomas L. Dyer, Edwin Lips,April Hussey, Chris Johns, Deepak Malhotra, Erik Spiller, Nick Michael,Zvonimir Ponos, David M. Richers, Patrick Donlon, Vicki J. Scharnhorst, Jessica I. Monasterio, Keith Thompson, and Lachlan Walker is a qualified person as such term is defined NI 43-101.

None of Tetra Tech MM, Inc., Tetra Tech, Inc., Rex Bryan, Thomas Dyer, Edwin Lips, Deepak Malhotra, Erik Spiller, Nick Michael, David Richers, Patrick Donlon, Vicki Scharnhorst, and Lachlan Walker,John W. Rozelle each being companies and persons who have prepared or certified the preparation of reports, statements or opinions relating to the Company’s mineral properties, or any director, officer, employee or partner thereof, as applicable, received or has received a direct or indirect interest in the property of the Company or of any associate or affiliate of the Company.  As at the date hereof, the aforementioned persons, companies and persons at the companies specified above who participated in the preparation of such reports, statements or opinions, as a group, beneficially own, directly or indirectly, less than 1% of the Company’s outstanding Common Shares.

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The current auditors of the Company are Plante Moran. Plante Moran report that they are independent of the Company in accordance with the Rules of Professional Conduct of the Institute of Chartered Accountants of British Columbia and in accordance with the applicable rules and regulations of the SEC. Plante Moran is registered with the Public Company Accounting Oversight Board. The audited consolidated financial statements of the Company as ofat December 31, 20132020 and 20122019 and for each of the two years in the period ended December 31, 20132020 and cumulatively, for the period from January 1, 2012 to December 31, 2013, and management’s assessment of the effectiveness of internal control over financial reporting (which is included in Management’s Report on Internal Control over Financial Reporting) as of December 31, 2013 included in Exhibit 99.1 of the Company’s Current Report on Form 8-K dated June 4, 20142019 have been audited by Plante Moran and are incorporated in this Prospectusby reference herein in reliance on the report (which contains an explanatory paragraph relating to the Company’s liquidity as described in Note 2 to the financial statements) of PricewaterhouseCoopers LLP Denver, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

The financial statements of the Company for the year ended December 31, 2011 included in Exhibit 99.1 of the Company’s Current Report on Form 8-K dated June 4, 2014 have been incorporated in this Prospectus in reliance on the report of PricewaterhouseCoopers LLP, Vancouver, British Columbia, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.  

The Midas Gold Corp. financial statements for the year ended December 31, 2013 included in Schedule A to the Company’s Annual Report on Form 10-K and incorporated  in the Prospectus by reference have been audited by Deloitte LLP, chartered accountants, as stated in their report, which is incorporated herein by reference. Such financial statements and financial statement schedules have been so incorporated in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.

LEGAL MATTERS

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Certain legal matters related to the Securities offered by this Prospectus will be passed upon on the Company’s behalf by Borden Ladner Gervais LLP, with respect to matters of Canadian law, and Dorsey & Whitney LLP, with respect to matters of United States law.  As of the date of this Prospectus, the partners and associates of Borden

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WHERE YOU CAN FIND MORE INFORMATION

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The Company files annual, quarterly and current reports, proxy statements and other information with the SEC.  Our SEC filings are available to the public over the Internet at the SEC’s web site at http://www.sec.gov.

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This Prospectus is part of a registration statement and, as permitted by SEC rules, does not contain all of the information included in the registration statement.  Whenever a reference is made in this Prospectus to any of our contracts or other documents, the reference may not be complete and, for a copy of the contract or document, you should refer to the exhibits that are part of the registration statement.  You may call the SEC at 1-800-SEC-0330 for more information on the public reference rooms and their copy charges.  You may also read and copy any document we file with the SEC at the SEC’s public reference rooms at:

100 F Street, N.E.

Room 1580

Washington, D.C. 20549

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PROSPECTUS

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PROSPECTUS​

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VISTA GOLD CORP.

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$50,000,000
100,000,000
Common Shares

Warrants

Subscription Receipts

Units

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July 10, 2014​

November , 2021

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