FORM 10-Q

                SECURITIES AND EXCHANGE COMMISSION
                      Washington, D.C.  20549

 (Mark One)
  [ X ] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                  SECURITIES EXCHANGE ACT OF 1934

        For the quarterly period ended SEPTEMBER 30, 1999
                                OR

  [    ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                  SECURITIES EXCHANGE ACT OF 1934

  For the transition period from____________ to _________________

                  Commission file number:  0-7574

                 WAUSAU-MOSINEE PAPER CORPORATION
        (Exact name of registrant as specified in charter)


                  WISCONSIN                    39-0690900
          (State of incorporation)  (I.R.S Employer Identification Number)


                      1244 KRONENWETTER DRIVE
                   MOSINEE, WISCONSIN 54455-9099
              (Address of principal executive office)

  Registrant's telephone number, including area code: 715-693-4470

 Indicate by check mark whether the registrant (1) has filed all reports
 required to be filed by section 13 or 15(d) of the Securities Exchange
 Act of 1934 during the preceding 12 months (or for such shorter period
 that the registrant was required to file such report), and (2) has been
 subject to such filing requirements for the past 90 days.

                             Yes   X    No

 The number of common shares outstanding at October 31, 1999 was
 51,416,691.

                 WAUSAU-MOSINEE PAPER CORPORATION

                         AND SUBSIDIARIES

                               INDEX
                                                         PAGE NO.
 PART I.  FINANCIAL INFORMATION

     Item 1.   Financial Statements
               Consolidated Statements of
               Income, Three Months and Nine Months Ended
               September 30, 1999 (unaudited) and
               September 30, 1998 (unaudited)                   1

               Consolidated Balance
               Sheets, September 30, 1999 (unaudited)
               and December 31, 1998 (derived from
               audited financial statements)                    2

               Consolidated Statements
               of Cash Flows, Nine Months
               Ended September 30, 1999 (unaudited)
               and September 30, 1998 (unaudited)               3

               Notes to Consolidated
               Financial Statements                           3-6

     Item 2.   Management's Discussion and
               Analysis of Financial Condition
               and Results of Operations                     7-13

     Item 3.   Quantitative and Qualitative Disclosures
               About Market Risk                               13

 PART II.  OTHER INFORMATION

     Item 1.   Legal Proceedings                               14

     Item 6.   Exhibits and Reports on Form 8-K             15-17

                                    (i)

                  PART I.  FINANCIAL INFORMATION

 ITEM 1.  FINANCIAL STATEMENTS

 Wausau-Mosinee Paper Corporation and Subsidiaries
 CONSOLIDATED STATEMENTS OF INCOME

                                           Three Months Ended      Nine Months Ended
                                              September 30,           September 30,
 ($ thousands, except per share
  data - unaudited)                        1999       1998           1999         1998
                                                                  
 NET SALES                           $   245,825   $  241,603     $  706,523  $  722,899
 Cost of products sold                   212,128      199,340        597,004     585,640

 GROSS PROFIT                             33,697       42,263        109,519     137,259

 Selling and administrative expenses      11,158        8,810         44,200      42,475
 Restructuring expense                         0            0              0      37,700

 OPERATING PROFIT                         22,539       33,453         65,319      57,084

 Interest expense                         (3,224)      (1,738)        (8,314)     (5,608)

 Other                                      (439)         (54)           102         251

 EARNINGS  BEFORE INCOME TAXES            18,876       31,661         57,107      51,727

 Provision for income taxes                7,090       12,050         21,490      19,550

 NET EARNINGS                        $    11,786   $   19,611     $   35,617  $   32,177

 NET EARNINGS PER SHARE BASIC        $      0.23   $     0.34     $     0.68  $     0.56

 NET EARNINGS PER SHARE DILUTED      $      0.22   $     0.34     $     0.66  $     0.56

 Weighted average shares
 outstanding-basic                    52,185,355   56,952,824     52,548,312  57,555,637

 Weighted average shares
 outstanding-diluted                  52,312,163   57,002,649     52,686,959  57,700,987

                                  -1-


 Wausau-Mosinee Paper Corporation
 CONSOLIDATED BALANCE SHEETS

 ($ thousands*)                         SEPTEMBER 30,       December 31,
                                           1999                 1998
 Assets
                                                       
 Current assets:
   Cash and cash equivalents         $      2,540            $     2,495
   Receivables, net                        90,476                 66,956
   Refundable income taxes                      0                  3,282
   Inventories                            147,026                150,217
   Deferred income taxes                   17,519                 18,344
   Other current assets                     1,826                    832
     Total current assets                 259,387                242,126

 Property, plant and equipment, net       647,557                625,065
 Other assets                              32,020                 32,958

 TOTAL ASSETS                        $    938,964            $   900,149

 LIABILITIES AND STOCKHOLDERS' EQUITY

 Current liabilities:
   Notes payable to banks            $          0            $    45,466
   Current maturities of long-term debt       199                  6,051
   Accounts payable                        61,145                 58,419
   Accrued and other liabilities           49,071                 50,784
     Total current liabilities            110,415                160,720

 Long-term debt                           227,663                127,000
 Deferred income taxes                     94,397                 94,911
 Postretirement benefits                   58,181                 60,558
 Pension                                   41,135                 39,235
 Other liabilities                         13,165                 21,139
     Total liabilities                    544,956                503,563
 Stockholders' equity                     394,008                396,586

 TOTAL LIABILITIES AND
 STOCKHOLDERS' EQUITY                $    938,964            $   900,149
<FN>
 *The consolidated balance sheet at September 30, 1999 is unaudited.  The
 December 31, 1998 consolidated balance sheet is derived from audited
 financial statements.

                                   -2-


 Wausau-Mosinee Paper Corporation and Subsidiaries
 CONSOLIDATED STATEMENTS OF CASH FLOWS

                                                  Nine Months Ended
                                                    September 30,
 ($ thousands - unaudited)                        1999         1998
                                                     
 Net cash provided by operating activities   $  54,654     $  89,477

 Capital expenditures                          (62,748)      (54,559)

 Borrowings under credit agreements             49,031           821

 Dividends paid                                (12,120)      (11,684)

 Purchase of company stock                     (29,953)      (32,663)

 Proceeds on sale of property, plant
 and equipment                                     738         9,468

 Other investing and financing activities          443         1,741

     Net increase in cash                    $      45     $   2,601

 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

 Note 1. The accompanying condensed financial statements, in the opinion
         of management, reflect all adjustments which are normal and
         recurring in nature and which are necessary for a fair statement
         of the results for the periods presented.  Some adjustments
         involve estimates which may require revision in subsequent
         interim periods or at year-end.  In all regards, the financial
         statements have been presented in accordance with generally
         accepted accounting principles.  Refer to notes to the financial
         statements which appear in the Annual Report on Form 10-K for
         the year ended December 31, 1998, for the company's accounting
         policies which are pertinent to these statements.

 Note 2. In connection with the merger of Wausau Paper Mills Company
         (Wausau) and Mosinee Paper Corporation (Mosinee) on December 17,
         1997, the company implemented a plan to reduce its work force by
         over 8%.  An after-tax expense of $23.4 million ($37.7 million
         pretax) or $0.40 per share was recorded in the three month

                                    -3-

         period ended March 31, 1998 to cover the cost of this work force
         reduction initiative as well as smaller amounts for other merger
         related costs.

 Note 3. Net income includes expenses, or credits, for stock-based
         incentive plans calculated by using the average price of the
         company's stock at the close of the reporting period as if all
         plans had been exercised on that day.  For the three months
         ended September 30, 1999, these plans resulted in after-tax

         income of $2,613,000 or $0.05 per share, compared to after-tax
         income of $4,067,000 or $0.07 per share for the same period last
         year.  Year-to-date, 1999, these plans resulted in after-tax
         income of $2,264,000 or $.04 per share compared to after-tax
         income of $2,800,000 or $.05 per share for the same period last
         year.

 Note 4. Accounts receivable consisted of the following:

      ($ thousands)                     SEPTEMBER 30,  December 31,
                                             1999        1998
                                                 
      Customer Accounts                    $98,551     $73,950
      Misc. Notes and Accounts Receivable    3,030       3,068
          Subtotal                         101,581      77,018
      Less: Allowances for Discounts,
      Doubtful Accounts and Pending
      Credits                               11,105      10,062
      Receivables, Net                     $90,476     $66,956


 Note 5. The various components of inventories were as follows:

      ($ thousands)                     SEPTEMBER 30,  December 31,
                                            1999          1998
                                                  
      Raw Materials and Supplies          $ 80,487      $ 86,994
      Finished Goods and Work in Process    82,934        75,906
          Subtotal                         163,421       162,900
      Less:  LIFO Reserve                 ( 16,395)     ( 12,683)
      Net inventories                     $147,026      $150,217

 Note 6. The accumulated depreciation on fixed assets was $464,065,000 as
         of September 30, 1999 and $427,954,000 as of December 31, 1998.
         The provision for depreciation, amortization and depletion for
         the nine months ended September 30, 1999 and September 30, 1998
         was $38,829,000 and $37,325,000, respectively.

 Note 7. On August 31, 1999, the Company closed and funded a private
         placement note offering for $138,500,000.  See Item 2,
         "Management's Discussion and Analysis of Financial Condition and
         Results of Operations - Financing."

 Note 8. Certain legal proceedings are described under Part II, Item 1 of
         this report.

                                    -4-

 Note 9. Interim Segment Information

      FACTORS USED TO IDENTIFY REPORTABLE SEGMENTS
      The Company's operations are classified into three principal
      reportable segments, the Specialty Paper Group, the Printing &
      Writing Group and the Towel & Tissue Group, each providing
      different products.  Separate management of each segment is
      required because each business unit is subject to different
      marketing, production and technology strategies.

      PRODUCTS FROM WHICH REVENUE IS DERIVED
      The Specialty Paper Group produces specialty papers at its
      manufacturing facilities in Rhinelander, Wisconsin; Mosinee,
      Wisconsin; Jay, Maine; and Middletown, Ohio.  The Printing &
      Writing Group produces a broad line of premium printing and writing
      grades at manufacturing facilities in Brokaw, Wisconsin and
      Groveton, New Hampshire.  The Printing & Writing Group also
      includes two converting facilities which produce wax-laminated
      roll wrap and related specialty finishing and packaging products
      and a converting facility which produces school papers.  The Towel
      & Tissue Group markets a complete line of towel, tissue, soap and
      dispensing systems for the "away-from-home" market.  The Towel &
      Tissue Group operates a paper mill in Middletown, Ohio and a
      converting facility in Harrodsburg, Kentucky.


      RECONCILIATIONS
      The following are reconciliations to corresponding totals in the
      accompanying consolidated financial statements:

                                                Three Months              Nine Months
                                               Ended Sept. 30,           Ended Sept. 30,
      ($ in thousands-unaudited)              1999       1998            1999      1998
                                                                     
      Net sales external customers
          Specialty Paper                   $103,549   $102,964       $301,059   $323,452
          Printing & Writing                 100,091     99,056        289,875    288,166
          Towel & Tissue                      42,185     39,583        115,589    111,281
                                            $245,825   $241,603       $706,523   $722,899
      Net sales intersegment
          Specialty Paper                   $  1,638   $  3,665       $  8,784   $ 11,332
          Printing & Writing                   1,004        452          1,884      1,222
          Towel & Tissue                           3         11            101         75
                                            $  2,645   $  4,128       $ 10,769   $ 12,629
      Operating profit
          Specialty Paper                   $  1,850   $  8,934       $ 15,671   $ 37,985
          Printing & Writing                  11,849     14,056         33,963     40,238
          Towel & Tissue                       6,421      6,051         18,189     20,097
      Total reportable segment
          Operating profit                    20,120     29,041         67,823     98,320
      Corporate & eliminations                 2,419      4,412        ( 2,504)   ( 3,536)
      Restructuring charge                         0          0              0    (37,700)
      Interest expense                       ( 3,224)   ( 1,738)        (8,314)   ( 5,608)
      Other income/expense                   (   439)   (    54)           102        251
      Earnings before income taxes          $ 18,876   $ 31,661       $ 57,107   $ 51,727

                                      -5-

      ($ in thousands-unaudited)      SEPTEMBER 30,      December 31,
                                          1999               1998
                                                 
      Segment Assets
          Specialty Paper               $391,146        $ 371,986
          Printing & Writing             316,099          293,509
          Towel & Tissue                 186,365          176,303
          Corporate & Unallocated*        45,354           58,351
                                        $938,964        $ 900,149
<FN>
       *   Industry segment assets do not include intersegment accounts
           receivable, cash, deferred tax assets and certain other assets
           which are not identifiable with industry segments.

                                     -6-

 ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
 RESULTS OF OPERATIONS*

 RESULTS OF OPERATIONS

 NET SALES

 For the three months ended September 30, 1999, net sales for the company

 were $245.8 million, an increase of 2% from the prior year's third
 quarter net sales of $241.6 million.  The total tons shipped for the
 three months ended September 30, 1999 were 218,000 tons and also
 increased 2% over the prior years third quarter.  For the first nine
 months of 1999, net sales were $706.5 million compared to $722.9 million
 in 1998, or a decrease of 2%.  Shipments for the nine months ended
 September 30, 1999 were 636,000 tons compared to 632,000 tons in the
 prior year.

 Net sales for the Specialty Paper Group were $103.5 million compared to
 $103.0 million for the third quarters of 1999 and 1998, respectively.
 Total tons shipped were 91,000 compared to 90,000 for the third quarter
 of 1999 compared to 1998.  Average selling prices were lower in the third
 quarter of 1999 compared to 1998 due to continued competitive conditions,
 particularly in the pressure sensitive products marketed by the
 Rhinelander and Otis mills.  For the first nine months of 1999, Specialty
 Paper Group sales were $301.1 million, down 7% over the same period a
 year ago.  Shipment volume was 271,000 tons in the first nine months of
 1999 and was down 3% from the comparable period in 1998.  The principal
 reason for the reduction in year-to-date shipment volume was the rebuild
 of the Otis #11 paper machine during the second quarter of 1999.

 Third quarter sales for the Printing & Writing Group were $100.1 million
 in 1999 compared to $99.1 million in 1998, an increase of 1%.  Shipment
 volume was comparable for both quarters and selling prices improved
 approximately 1% over the prior year's third quarter. Printing & Writing
 sales were $289.9 million for the first nine months of 1999, very near
 the first nine months of 1998 sales of $288.2 million.  On a year-to-date
 basis shipments were up 2% over that of 1998.

 Net sales for the Towel & Tissue Group for the quarter ended September
 30, 1999 were $42.2 million, an increase of 7% over the third quarter
 net sales in 1998.  Shipments were up 10% over the third quarter's
 volume in 1998 and were 34,000 tons in the third quarter of 1999.
 Competitive conditions in the "away-from-home" towel and tissue markets
 caused average selling prices to decline from year ago levels.  Net
 sales for the Towel & Tissue Group were $115.6 million for the first
 nine months of 1999 compared to $111.3 million in the same period

 *  Matters discussed in this report with respect to the company's
 expectations are forward-looking statements that involve risks and
 uncertainties.  See "Information Concerning Forward-Looking
 Statements."

                                    -7-

 of 1998.  Shipments improved to 92,000 tons, an increase of 9% over that
 of the first nine months of 1998.

 Order backlog of 47,000 tons at September 30, 1999 was strong in all
 operating groups and compared favorably to order backlog at September 30,
 1998 of 32,000 tons.  However, the company believes backlog totals do not
 entirely indicate the strength of its business, since a substantial
 percentage of orders are shipped out of inventory promptly upon receipt.

 GROSS PROFIT

 Gross profit for the three months ended September 30, 1999 was $33.7
 million or 13.7% of net sales, compared to gross profit for the same
 period of 1998 of $42.3 million or 17.5% of net sales.  The decline in
 gross profit margin from 1998 is due primarily to lower selling prices
 for a significant portion of the company's products due to continuing
 competitive market pressures along with escalating raw material and other
 manufacturing costs.  Nine month year-to-date margins for 1999 declined
 by 3.5 percentage points as a result of similar business conditions to
 the quarterly comparison.  Continuing increases in raw material and other
 manufacturing costs may result in lower gross profit margins for the
 Company if the increased costs are not recovered through higher selling
 prices.  Fiber cost increases are expected to continue in the short term.

 The Specialty Paper Group's gross profit margin decreased from 12.5% of
 net sales in the third quarter of 1998 to 6.8% this year.  The margin
 decline was principally due to lower selling prices for the Group's
 products, in particular, pressure sensitive products.  Raw material and
 other manufacturing costs also increased during the quarter and
 compressed margins. For the first nine months of 1999 gross profit
 margins were 10.2% for the Specialty Paper Group, compared to 15.9% in
 the prior year's first nine months.  This decline in margins was
 principally due to lower selling prices.

 The Printing & Writing Group's gross profit margin for the third quarter
 of 1999 was 16.9% compared to 20.1% for the prior year.  For the first
 nine months of 1999 gross profit margin was 17.3% compared to 18.9% for
 1998.  The decline in margin was due principally to lower selling prices
 and higher pulp mill operational costs.

 The gross profit margin for the Towel & Tissue Group was 22.4% for the
 third quarter of 1999, a decrease of 3.0% from the prior year's gross
 margin of 23.0%.  For the first nine months of 1999 the Group's gross
 profit margin declined by 8% to 24.0% compared to 26.0% in 1998.  Volume
 increases along with improved production levels favorably impacted gross
 profit margins for both the quarter and the first nine months of 1999.
 However, selling prices declined during both comparative periods and
 resulted in overall lower gross profit margins.  Wastepaper costs were
 higher in the quarterly comparison and also negatively impacted gross
 margins.

                                      -8-

 SELLING AND ADMINISTRATIVE EXPENSES

 Selling and administrative expenses for the three months ended September
 30, 1999 were $11.2 million compared to $8.8 million in the same period
 in 1998.  Adjustments for incentive compensation programs based on the
 market price of the company's stock accounted for $2.4 million of the
 quarter over quarter variance as income of $4.2 million was recorded for
 the current quarter compared to income of $6.6 million in the third
 quarter of 1998.  The balance of the increase in expense is attributable
 to increased retirement plan costs and general inflationary trends
 offset by continued merger savings and reduced bonus expense.

 For the nine months ended September 30, 1999, selling and administrative
 expenses were $44.2 million compared to $42.5 million in the first nine
 months of 1998.  Adjustments for stock incentive programs resulted in

 income of $3.6 million in 1999 compared to income of $4.5 million in
 1998.  Other year to date changes were similar to those discussed for
 the quarterly comparison noted above.

 CAPITAL RESOURCES AND LIQUIDITY

 CASH PROVIDED BY OPERATIONS

 For the nine months ended September 30, 1999, cash provided by operations
 was $54.7 million, compared to $89.5 million for the same period of 1998.
 The decrease in operating cash flows was principally due to reduced
 current year earnings when compared to pre-restructuring earnings for the
 first nine months last year.  In addition, a $23.5 million increase in
 accounts receivable from the year-end balance has resulted in decreased
 operating cash flows.

 CAPITAL EXPENDITURES

 Capital expenditures totaled $62.7 million for the nine months ended
 September 30, 1999, compared to $54.6 million for the same period last
 year.

 During the first nine months of 1999, the Specialty Paper Group spent
 $2.9 million completing the #1 paper machine upgrades, $2.4 million for a
 woodroom modernization, $2.1 million for a wet lap machine and $3.6
 million for a boiler precipitator at one of its mills and $16.7 million
 on two machine rebuilds at another mill.  These projects, when completed,
 should expand the production capacity of both mills, add new
 manufacturing capabilities and improve the sales mix.  The Printing &
 Writing Group has spent nearly $8 million in the first nine months of
 1999 on a pulp mill digester upgrade, a machine dry-end upgrade, a stock
 blending system, and a boiler conversion at two of its mills.  The Towel
 & Tissue Group has spent $4.4 million to add new converting lines in
 order to keep up production for the increased demand for the Bay West
 "away-from-home" toweling and tissue products.

 In addition to the $62.7 million spent in the first nine months of 1999
 for capital assets, the company has commitments to spend another $15.5
 million this year.  Total capital expenditures for 1999 should
 approximate $85 million.

                                    -9-

 At the April 1999 meeting, the Board of Directors approved $45 million in
 capital improvements at the Specialty Paper Group's Rhinelander mill,
 most of which will be expended in 2000.  The improvements will upgrade
 the production process for pressure sensitive papers to surpass the
 customers' technical requirements and improve their operating
 efficiencies, while at the same time improving the company's product mix.
 These capital improvements are expected to be fully implemented by the
 third quarter of the year 2000.

 FINANCING

 Total current and long-term debt increased for the nine months ended
 September 30, 1999 to $227.9 million. The increase in total debt from

 December 1998 is principally due to the authorized repurchase of the
 Company's stock during the first nine months of 1999 and the increase in
 working capital needs from year end.

 Interest expense was $3.2 million in the third quarter of 1999 compared
 to $1.7 million in the same period of 1998.  The increase in interest
 expense is the result of higher funded debt levels in 1999 compared to
 1998.  The increase as a result of higher debt levels has been partially
 offset by reduced borrowing rates and increased capitalized interest.

 On August 31, 1999, the Company closed and funded a private placement
 note offering for $138,500,000.   The principal amounts, maturities, and
 interest rates on the notes are:  (1) $35,000,000, 8 years, 7.20%;  (2)
 $68,500,000, 10 years, 7.31%; and (3) $35,000,000, 12 years, 7.43%.  The
 Company also entered into an interest rate swap agreement under which the
 interest rate paid by the Company with respect to (1) $58,500,000 of the
 10-year notes will be the three month LIBOR rate, plus .4925% and (2)
 $30,000,000 of the 12-year notes will be the three month LIBOR rate, plus
 .55%.  The proceeds from the notes were utilized to pay down existing
 bank facilities and other maturing obligations.

 Cash provided by operations and the Company's borrowing capacity are
 expected to meet capital needs and dividends. The Company also plans to
 refinance the existing outstanding bank revolving credit agreement prior
 to year end.

 COMMON STOCK REPURCHASE

 In August, 1998 the Board of Directors authorized the company to
 repurchase up to 5,650,000 shares of common stock, subject to adjustment
 for future stock splits or dividends.  This repurchase authorization
 represents approximately ten percent of the shares then outstanding.
 Under this authorization, the company repurchased an aggregate of
 2,006,926 shares during the nine-month period ended September 30, 1999.
 An additional 200,000 shares were purchased subsequent to September 30,
 bringing the total to 5,432,026 shares purchased under this
 authorization.

                                     -10-

 DIVIDENDS

 A quarterly cash dividend of $.07 per share was paid February 15 and
 cash dividends of $.08 per share were paid on May 17, 1999 and August 16,
 1999.  On October 21, 1999, the Board of Directors declared a quarterly
 cash dividend of $.08 payable November 15, 1999 to shareholders of
 record on November 1, 1999.

 YEAR 2000

 Year 2000 issues apply to the Company's computerized manufacturing
 process controllers, environmental systems, order processing, inventory
 management, the shipment of finished goods, and internal financial and
 other information systems. Year 2000 issues also apply to the Company's
 suppliers and customers. For purposes of this discussion, the terms "Year
 2000 issues" or "Year 2000 problems", or terms of similar import, refer
 to the potential failure of computer applications as a result of the

 failure of a program or hardware to properly recognize the year 2000 and
 to properly handle dates beyond the year 1999. The term "Year 2000
 readiness", or terms of similar import, mean that the particular
 equipment or processes referred to have been modified or replaced and
 the Company believes that such modified or replaced equipment or
 processes will operate as designed after 1999 without Year 2000
 problems.

      Readiness

 The Company has completed an inventory of mission critical information
 systems, process equipment, and manufacturing facilities.  The Company
 continues to evaluate and test equipment, environmental controls, and
 other core functions.  An assessment of these functions was completed
 during the second quarter with testing having been now completed in its
 entirety.  The Company believes that the most critical information
 systems, primarily the sales order processing, inventory, and shipping
 systems, are now Year 2000 ready. The Company's enterprise resource
 planning system ("ERP") which was intended to bring the remainder of the
 Company's information systems to Year 2000 readiness is now complete.
 The broader, non-Year 2000 aspects of the ERP system will be fully
 implemented in 2001 and beyond.

      Costs

 The costs of achieving Year 2000 readiness have not been material to
 date and are not expected to be material. The cost of remediation for
 key papermaking process controls and equipment is expected to be less
 than $2 million. Internal costs for Year 2000 readiness are not being
 tracked, but principally relate to payroll costs of Company personnel.
 The implementation of the Company-wide ERP system is expected to require
 a capital investment of approximately $7.0 million. Although the ERP
 implementation timetable was not accelerated to address Year 2000 issues,
 those issues were considered in determining the overall timetable for its
 implementation.

                                     -11-

      Risks

 The Company expects no material adverse effect on its consolidated
 financial condition, liquidity or results of operations (collectively,
 its "business") as a result of problems encountered in its own business
 as a result of Year 2000 issues or as a result of the impact of Year 2000
 problems on its customers or vendors. However, the risks to the Company
 associated with Year 2000 issues are many.

 The Company's assessment of possible Year 2000 related problems depends,
 to some extent, on the assurances and guidance provided it by the
 suppliers of the technology as to its Year 2000 readiness. In addition,
 the Company has limited ability to independently verify the possible
 effect of Year 2000 problems on its customers and vendors. Therefore, the
 Company's assumptions concerning the effect of Year 2000 issues relies,
 in part, on its ability to analyze the business and operations of each
 of its critical vendors or customers. This process is, by the nature of
 the problem, limited to such persons' public statements, their responses

 to the Company's inquiries, and the information available to the Company
 from third parties concerning the industries or particular vendors or
 customers involved.

 The Company expects that Year 2000 problems which cause customers to be
 unable to place orders would have a material adverse impact on its
 business only if the problem was widespread and long-lived. The Company
 has a broad customer base, which would likely alleviate the adverse
 effects of isolated customer Year 2000 problems.

 Some risk also exists that, despite the Company's best efforts, critical
 manufacturing systems may malfunction due to Year 2000 problems and
 curtail the manufacturing process. The Company does not anticipate such
 interruptions and it is unlikely any such curtailment would be lengthy.
 With eleven manufacturing facilities, a temporary interruption at one
 facility is unlikely to have a material adverse impact on the Company's
 business.

 Interruption of raw material supply due to supplier problems caused by
 Year 2000 issues are not expected to be material as the Company stocks
 raw materials to protect against supply problems and alternative sources
 of supply exist to meet the Company's raw material needs.  Similarly,
 although the Company faces potential disruptions in its operations from
 Year 2000 problems as a result of the failure of the power grid,
 telecommunications, or other abilities, it is not aware that any
 material disruption in these infrastructures is reasonably likely to
 occur and the number and widespread location of its facilities is likely
 to minimize the impact of any disruption.

      Contingency Plan

 The Company has evaluated various contingencies that may arise as a
 result of Year 2000 issues. The Company anticipates that disruptions in
 production, sales, the supply of raw materials, loss of customer orders,
 and other foreseeable effects of the Year 2000 issues can be addressed
 following normal business alternatives. The Company will continue to
 analyze and develop contingency plans where possible and not cost
 prohibitive.

                                   -12-

 INFORMATION CONCERNING FORWARD LOOKING STATEMENTS

 This report contains certain of management's expectations and other
 forward-looking information regarding the Company pursuant to the safe-
 harbor provisions of the Private Securities Litigation Reform Act of
 1995.   While the Company believes that these forward-looking statements
 are based on reasonable assumptions, such statements are not guarantees
 of future performance and all such statements involve risk and
 uncertainties that could cause actual results to differ materially from
 those contemplated in this report.  The assumptions, risks and
 uncertainties relating to the forward-looking statements in this report
 include general economic and business conditions, changes in the prices
 of raw materials, competitive pricing in the markets served by the
 Company as a result of economic conditions or overcapacity in the
 industry, and possible adverse effects on the Company or the economy

 from Year 2000 problems.  These and other assumptions, risks and
 uncertainties are described under the caption "Cautionary Statement
 Regarding Forward-Looking Information" in Item 1 of the Company's Annual
 Report on Form 10-K for the year ended December 31, 1998, and, from time
 to time, in the Company's other filings with the Securities and Exchange
 Commission.

 ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

 The Company does not have a material market risk associated with
 interest rate risk, foreign currency exchange risk, or commodity price
 risk. The Company conducts U.S. dollar denominated export transactions or
 immediately exchanges all foreign currency attributable to export sales
 for U.S. dollars.

 On July 26, 1999, the Company entered into an interest rate swap
 agreement with respect to an aggregate of $88,500,000 in principal amount
 of the notes issued pursuant to its $138,500,000 Note Purchase Agreement
 dated August 31, 1999 (the "Notes").  The Notes bear interest at fixed
 rates over 8, 10, and 12 year terms.  The purpose of the interest rate
 swap agreement is to reduce the Company's exposure to long-term rates
 under the Notes by converting a portion of the interest to short-term
 rates.  The Company's rate risk under the agreement is based on the
 3-month LIBOR rate.

 The Company maintains certain derivative commodity instruments as hedges
 for anticipated transactions.  Such instruments do not have a material
 market risk and no such derivative commodity instrument is held for
 trading.  These instruments have consisted, from time to time, of various
 futures contracts for the purchase of natural gas and fuel oil.  The
 Company continues to consider the purchase of pulp futures contracts as
 a hedge against pulp price increases.  See Notes 1 and 14 of "Notes to
 Consolidated Financial Statements" for additional information relating
 to the Company's derivative commodity instruments.

                                   -13-


                    PART II.  OTHER INFORMATION

 ITEM 1. LEGAL PROCEEDINGS

 In 1997, the Attorney General of the State of Florida filed a civil
 complaint in the United States District Court for the Northern District
 of Florida against ten manufacturers of commercial sanitary paper
 products, including the Company's wholly owned subsidiary, Bay West Paper
 Corporation. The lawsuit alleges a conspiracy to fix prices of commercial
 sanitary paper products starting at least as early as 1993. Since the
 filing of this lawsuit, numerous class action suits have been filed by
 private direct purchasers of commercial sanitary paper products in
 various federal district courts throughout the country and additional
 federal lawsuits have been filed by the Attorneys General of the States
 of Kansas, Maryland, New York, and West Virginia. All of these federal
 cases have been certified as class actions and consolidated in a
 multi-district litigation proceeding in the United States District Court
 for the Northern District of Florida in Gainesville. Certain indirect

 purchasers of sanitary commercial paper products have also filed class
 action lawsuits in various state courts alleging a conspiracy to fix
 prices under state antitrust laws. No class has been certified in the
 state actions.  All of these actions are in early stages. In the opinion
 of management, the Company has not violated any antitrust laws.  The
 Company is vigorously defending these claims.

                                    -14-

 ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K

 (a)  Exhibits required by Item 601 of Regulation S-K

 The following exhibits are filed with the Securities and Exchange
 Commission as part of this report:

        Exhibit
        NUMBER                 DESCRIPTION

     3.1  Restated Articles of Incorporation, as amended October 21, 1998
          (incorporated by reference to Exhibit 3.1 to the Company's
          Current Report on Form 8-K dated October 21, 1998)

     3.2  Restated Bylaws, as amended December 17, 1997 (incorporated by
          reference to Exhibit 4.2 to the Company's Registration Statement
          on Form S-8 dated December 17, 1997)

     4.1  Rights Agreement, dated as of October 21, 1998, between the
          Company and Harris Trust and Savings Bank, including the Form of
          Restated Articles of Incorporation as Exhibit A and the Form of
          Rights Certificate as Exhibit B (incorporated by reference to
          Exhibit 4.1 to the Company's Current Report on Form 8-K dated
          October 21, 1998)

     4.2  Summary of Rights to Purchase Preferred Shares, Exhibit C to
          Rights Agreement filed as Exhibit 4.1 hereto (incorporated by
          reference to Exhibit 4.2 to the Company's Registration Statement
          on Form 8-A, filed on October 29, 1998)

     4.3  $138,500,000 Note Purchase Agreement dated August 31, 1999

     10.1 Supplemental Retirement Plan, as last amended March 4, 1999
          (incorporated by reference to Exhibit 10.1 to the Company's
          Annual Report on Form 10-K for the fiscal year ended December
          31, 1998)*

     10.2 Incentive Compensation Plans (Printing & Writing Division and
          Technical Specialty Division), as amended September 17, 1997
          (incorporated by reference to Exhibit 10.2 to the Company's
          Quarterly Report on Form 10-Q for the quarterly period ended
          November 30, 1997)*

     10.3 Corporate Management Incentive Plan, as amended September 18,
          1996 (incorporated by reference to Exhibit 10(c) to the
          Company's Annual Report on Form 10-K for the fiscal year ended
          August 31, 1996)*

                                       -15-

     10.4 1988 Stock Appreciation Rights Plan, as last amended March 4,
          1999 (incorporated by reference to Exhibit 10.4 to the Company's
          Annual Report on Form 10-K for the fiscal year ended December
          31, 1998)*

     10.5 1988 Management Incentive Plan, as last amended March 4, 1999
          (incorporated by reference to Exhibit 10.5 to the Company's
          Annual Report on Form 10-K for the fiscal year ended December
          31, 1998)*

     10.6 1990 Stock Appreciation Rights Plan, as last amended March 4,
          1999 (incorporated by reference to Exhibit 10.6 to the Company's
          Annual Report on Form 10-K for the fiscal year ended December
          31, 1998)*

     10.7 Deferred Compensation Agreement dated July 1, 1994, as last
          amended March 4, 1999 (incorporated by reference to Exhibit 10.7
          to the Company's Annual Report on Form 10-K for the fiscal year
          ended December 31, 1998)*

     10.8 1991 Employee Stock Option Plan, as last amended March 4, 1999
          (incorporated by reference to Exhibit 10.8 to the Company's
          Annual Report on Form 10-K for the fiscal year ended December
          31, 1998)*

     10.9 1991 Dividend Equivalent Plan, as last amended March 4, 1999
          (incorporated by reference to Exhibit 10.9 to the Company's
          Annual Report on Form 10-K for the fiscal year ended December
          31, 1998)*

     10.10 Supplemental Retirement Benefit Plan dated January 16, 1992, as
           last amended March 4, 1999 (incorporated by reference to
           Exhibit 10.10 to the Company's Annual Report on Form 10-K for
           the fiscal year ended December 31, 1998)*

     10.11 Directors' Deferred Compensation Plan, as last amended March 4,
           1999 (incorporated by reference to Exhibit 10.11 to the
           Company's Annual Report on Form 10-K for the fiscal year ended
           December 31, 1998)*

     10.12 Directors Retirement Benefit Policy, as amended April 16, 1998
           (incorporated by reference to Exhibit 10.12 to the Company's
           Quarterly Report on Form 10-Q for the quarterly period ended
           March 31, 1998)*

     10.13 Transition Benefit Agreement with former President and CEO
           (incorporated by reference to Exhibit 10.13 to the Company's
           Annual Report on Form 10-K for the fiscal year ended August 31,
           1997)*

     10.14 Mosinee Paper Corporation 1985 Executive Stock Option Plan, as
          last amended March 4, 1999 (incorporated by reference to Exhibit
          10.14 to the Company's Annual Report on Form 10-K for the fiscal
          year ended December 31, 1998)*

     10.15 Mosinee Paper Corporation 1988 Stock Appreciation Rights Plan,
           as last amended March 4, 1999 (incorporated by reference to
           Exhibit 10.15 to the Company's Annual Report on Form 10-K for

                                        -16-

          the fiscal year ended December 31, 1998)*

     10.16 Mosinee Paper Corporation 1996 and 1997 Incentive Compensation
           Plans for Corporate Executive Officers (incorporated by
           reference to Exhibit 10.16 to the Company's Transition Report
           on Form 10-Q for the transition period ended December 31,
           1997)*

     10.18 Mosinee Paper Corporation Supplemental Retirement Benefit
           Agreement dated November 15, 1991, as last amended March 4,
           1999 (incorporated by reference to Exhibit 10.18 to the
           Company's Annual Report on Form 10-K for the fiscal year ended
           December 31, 1998)*

     10.19 Mosinee Paper Corporation 1994 Executive Stock Option Plan, as
           last amended March 4, 1999 (incorporated by reference to
           Exhibit 10.19 to the Company's Annual Report on Form 10-K for
           the fiscal year ended December 31, 1998)*

     10.20 Incentive Compensation Plan for Executive Officers (1998)
           (incorporated by reference to Exhibit 10.20 to the Company's
           Quarterly Report on Form 10-Q for the quarterly period ended
           March 31, 1998)*

     10.21 1999 Incentive Compensation Plan for Executive Officers
           (incorporated by reference to Exhibit 10.21 to the Company's
           Annual Report on Form 10-K for the fiscal year ended December
           31, 1998)*

     21.1 Subsidiaries as of September 30, 1999

     27.1 Financial Data Schedule (filed electronically only)

     *  Executive compensation plans or arrangements.  All plans are
        sponsored or maintained by the Company unless otherwise noted.

 (b)  Reports on Form 8-K:

     None.

                                      -17-

                            SIGNATURES

 Pursuant to the requirements of the Securities Exchange Act of 1934, the
 registrant has duly caused this report to be signed on its behalf by the
 undersigned thereunto duly authorized.

                              WAUSAU-MOSINEE PAPER CORPORATION



 November 12, 1999            GARY P. PETERSON
                              Gary P. Peterson
                              Senior Vice President-Finance,
                              Secretary and Treasurer

                              (On behalf of the Registrant and as
                              Principal Financial Officer)

                                    -18-

                           EXHIBIT INDEX
                                TO
                             FORM 10-Q
                                OF
                 WAUSAU-MOSINEE PAPER CORPORATION
         FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 1999
           Pursuant to Section 102(d) of Regulation S-T
                     (17 C.F.R. <section> 232.102(d))


 EXHIBIT 4.3 $138,000,000 NOTE PURCHASE AGREEMENT DATED AUGUST 31, 1999

 EXHIBIT 27.1 FINANCIAL DATA SCHEDULE