completed, with a focus on resource confirmation and resource expansion in the Umwelt and Llama deposits, as well as the testing of various regional targets. B2Gold expects to complete an updated Goose Project life of mine plan in the second half of 2023.
Bellevue (2% NSR royalty): Bellevue Gold Limited (“Bellevue”) announced on October 26, 2023, that first gold had been poured at the Bellevue Gold Project in Western Australia. Bellevue reported that the project is now in the commissioning phase, with plant throughput forecast to ramp up to consistent production at the nameplate processing capacity of 1 million tonnes per year.
Côté Gold (1% NSR royalty): IAMGOLD Corporation reported that construction completion at the Côté Gold Project had reached approximately 92% as of September 30, 2023, with production expected to commence in early 2024.
Granite Creek (3.0% NSR and 2.94% NSR royalties): On October 11, 2023, i-80 Gold Corp. (“i-80”) provided a development and exploration update on the Granite Creek Project in Nevada. According to i-80, record monthly tonnage and gold mineralization was mined from the Ogee Zone in August 2023, and a drill program targeting the South Pacific Zone (“SPZ”) has defined high grade mineralization over a significant strike length. i-80 is targeting the SPZ as a priority for development and is extending a decline with a target to bring the SPZ into the Granite Creek mine plan in 2024. i-80 further reported that the Granite Creek deposit remains open at depth and along strike from the existing underground workings.
Great Bear (2% NSR royalty): Kinross Gold Corporation (“Kinross”) provided an update on activity at the Great Bear Project in Ontario on August 2, 2023. Kinross reported that it had signed an Advanced Exploration Agreement with the Wabauskang and Lac Seul First Nations as the Company moves from surface exploration to underground exploration. Kinross further reported that its focus for 2023 is on inferred drilling in the area half a kilometre to one kilometre below surface, and that it continues to advance studies and plans to release a preliminary economic assessment in 2024.
Mara Rosa (1.0% NSR and 1.75% NSR royalties): Hochschild Mining PLC announced on September 6, 2023, that the Mara Rosa Project in Brazil is advancing on schedule and on budget with total project progress at 92%, and production remains on track for the first half of 2024.
Third Quarter 2023 Overview
In the third quarter, we recorded net income and comprehensive income attributable to Royal Gold stockholders (“net income”) of $49.3 million, or $0.75 per basic and diluted share, as compared to net income of $45.8 million, or $0.70 per basic and diluted share, for the quarter ended September 30, 2022. The increase in net income was primarily attributable to higher revenue, as discussed below.
For the third quarter, we recognized total revenue of $138.6 million, comprised of stream revenue of $99.0 million and royalty revenue of $39.6 million at an average gold price of $1,928 per ounce, an average silver price of $23.57 per ounce and an average copper price of $3.79 per pound. This is compared to total revenue of $131.4 million for the prior year period, comprised of stream revenue of $98.7 million and royalty revenue of $32.7 million, at an average gold price of $1,729 per ounce, an average silver price of $19.23 per ounce and an average copper price of $3.51 per pound.
The increase in our total revenue resulted primarily from higher gold production at the Cortez Legacy Zone, the new Cortez royalties acquired in 2022 and higher gold, silver and copper prices when compared to the prior year period. This increase was partially offset by the suspension of operations at Peñasquito on June 7, 2023 due to a strike by the Union which resulted in no royalty revenue recognized for the three months ended September 30, 2023.
Cost of sales, which excludes depreciation, depletion and amortization (“DD&A”), decreased to $21.4 million for the third quarter, from $23.2 million for the prior year period. The decrease, when compared to the prior year quarter, was primarily due to lower gold sales at Mount Milligan and lower gold and silver sales at Pueblo Viejo, partially offset by higher silver sales at Khoemacau. Cost of sales is specific to our stream agreements and is the result of our purchase of gold, silver and copper for a cash payment. The cash payment for gold from Mount Milligan is the lesser of $435 per ounce or the prevailing market price of gold when purchased, while the cash payment for our other streams is a set contractual percentage of the gold, silver or copper (Mount Milligan) spot price near the date of metal delivery.
General and administrative costs increased to $9.9 million for the third quarter, from $7.6 million for the prior year period. The increase was primarily due to higher corporate costs and an increase in non-cash stock compensation expense.
Depreciation, depletion and amortization increased to $40.1 million for the third quarter, from $37.8 million for the three months ended September 30, 2022. The increase was primarily due to higher depletion expense at Khoemacau due to the ramp-up of production and additional depletion expense from the new royalties acquired at Cortez in 2022, when compared to the prior year quarter. The increase was partially offset by lower depletion expense at Mount Milligan and Pueblo Viejo, which was due to lower depletion rates as a result of proven and probable mineral reserve increases when compared to the prior year period.
Interest and other expense decreased to $7.3 million for the third quarter, from $8.8 million for the three months ended September 30, 2022. The decrease was primarily due to lower interest expense as a result of lower average amounts