<ARTICLE>             5
<LEGEND>
 THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
 CONSOLIDATED FINANCIAL STATEMENTS FOR THE THREE MONTHS ENDED MARCH 31
 2000 OF WAUSAU-MOSINEE PAPER CORPORATION AND IS QUALIFIED IN ITS
 ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

                                    
 <PERIOD-TYPE>                               3-MOS
 <FISCAL-YEAR-END>                     DEC-31-2000
 <PERIOD-END>                          MAR-31-2000
 <CASH>                                     11,073
 <SECURITIES>                                    0
 <RECEIVABLES>                              98,881
 <ALLOWANCES>                                8,900
 <INVENTORY>                               156,678
 <CURRENT-ASSETS>                          284,903
 <PP&E>                                  1,141,654
 <DEPRECIATION>                            490,653
 <TOTAL-ASSETS>                            969,163
 <CURRENT-LIABILITIES>                     141,794
 <BONDS>                                   232,291
 <COMMON>                                  170,682
 <PREFERRED-MANDATORY>                           0
 <PREFERRED>                                     0
 <OTHER-SE>                                210,156
 <TOTAL-LIABILITY-AND-EQUITY>              969,163
 <SALES>                                   243,606
 <TOTAL-REVENUES>                          243,606
 <CGS>                                     215,364
 <TOTAL-COSTS>                             259,583
 <OTHER-EXPENSES>                               61
 <LOSS-PROVISION>                                0
 <INTEREST-EXPENSE>                          3,705
 <INCOME-PRETAX>                           (19,621)
 <INCOME-TAX>                               (6,700)
 <INCOME-CONTINUING>                       (12,921)
 <DISCONTINUED>                                  0
 <EXTRAORDINARY>                                 0
 <CHANGES>                                       0
 <NET-INCOME>                              (12,921)
 <EPS-BASIC>                                  (.25)
 <EPS-DILUTED>                                (.25)