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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                   FORM 10-Q/A


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

               For the quarterly period ended June 30, 1997.

                                       OR

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

               For the transaction period from _______ to _______


COMMISSION FILE NUMBER   333-3250
                       ------------


                  First Interstate BancSystem of Montana, Inc.
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)


                 Montana                                    81-0331430
      -------------------------------                  -------------------
      (State or other jurisdiction of                     (IRS Employer
      incorporation or organization)                   Identification No.)


          PO Box 30918, 401 North 31st Street, Billings, MT   59116-0918
          --------------------------------------------------------------
              (Address of principal executive offices)        (Zip Code)


Registrant's telephone number, including area code         406/255-5300
                                                   -----------------------------

                                       N/A
             -----------------------------------------------------
             (Former name, former address, and former fiscal year,
                         if changed since last report)


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 reports), and (2) has been subject to such filing
requirements for the past 90 days Yes X No


The Registrant had 1,991,274 shares of common stock and 20,000 shares of
preferred stock outstanding on July 25, 1997.


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   2


                  FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC.
                          Quarterly Report on Form 10-Q




                                             Index                                        Page
                                             -----                                        -----
                                                                                    
PART I.   FINANCIAL INFORMATION

                Item 1 - Financial Statements

                  Restatement Explanatory Note                                              3

                  Consolidated Balance Sheets
                  June 30,1997 and December 31,1996                                         4

                  Consolidated Statements of Income
                  Three months ended June 30, 1997 and 1996, and
                  Six months ended June 30, 1997 and 1996                                   5

                  Consolidated Statements of Cash Flows
                  Six months ended June 30, 1997 and 1996                                   6

                  Notes to Unaudited Consolidated Financial
                  Statements                                                                7

                  As more fully described in "Notes to Unaudited Consolidated
                  Financial Statements," the Company has restated its 1997
                  consolidated financial statements

                Item 2 - Managements' Discussion and Analysis of
                         Financial Condition and Results of
                         Operations                                                        13

PART II.  OTHER INFORMATION

                Item 1 - Legal Proceedings                                                 17

                Item 2 - Changes in Securities                                             17

                Item 3 - Defaults upon Senior Securities                                   17

                Item 4 - Submission of Matters to a Vote of
                         Security Holders                                                  17

                Item 5 - Other Information                                                 17

                Item 6 - Exhibits and Reports on Form 8-K                                  17
SIGNATURES                                                                                 18




                                       2


   3



                          RESTATEMENT EXPLANATORY NOTE

In 2000, the Company determined it was necessary to restate the Company's 2000,
1999, 1998 and 1997 consolidated quarterly financial statements to change the
accounting treatment for awards made pursuant to its Nonqualified Stock Option
and Stock Appreciation Rights Plan ("Stock Option Plan") from fixed to variable
plan accounting.

This Amendment No. 1 to the Company's Quarterly Report on Form 10-Q for the
quarterly period ended June 30, 1997 amends and restates the previously filed
Form 10-Q in its entirety. In order to preserve the nature and character of the
disclosures set forth in the Form 10-Q as originally filed, no attempt has been
made in this Amendment No. 1 to modify or update such disclosures except as
required to reflect the effects of the restatement and make nonsubstantial
revisions to the notes to the unaudited consolidated financial statements. For
additional information regarding the restatement, see "Notes to Unaudited
Consolidated Financial Statements - Restatement" included in Part I, Item 1.

Share and per share data presented have not been restated to give effect of a
four-for-one stock split occurring during the fourth quarter of 1997.




                                       3

   4


          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

                           Consolidated Balance Sheets
                    (Dollars in thousands, except share data)
                                   (Unaudited)



                                                                    June 30,
                        Assets                                        1997          December 31,
                                                                   (Restated)           1996
                                                                 ------------      -------------
                                                                             
    Cash and due from banks                                      $    130,362          160,962
    Federal funds sold                                                 19,275            4,945
    Interest bearing deposits in banks                                     37            6,545
    Investment securities:
        Available-for-sale                                             83,479          124,502
        Held-to-maturity                                              313,452          279,069
                                                                 ------------     ------------
                                                                      396,931          403,571

    Loans, net                                                      1,475,852        1,375,479
    Less allowance for loan losses                                     28,757           27,797
                                                                 ------------     ------------
           Net loans                                                1,447,095        1,347,682

    Premises and equipment, net                                        58,976           58,183
    Accrued interest receivable                                        21,066           19,573
    Excess of purchase price over equity in net assets of
        subsidiaries less accumulated amortization of
        $7,284 at June 30, 1997 (unaudited) and $5,971
        at December 31, 1996                                           34,160           39,010
    Other real estate owned, net                                        1,098            1,546
    Deferred tax asset                                                  7,152            4,921
    Other assets                                                       15,697           16,899
                                                                 ------------     ------------
               Total assets                                      $  2,131,849        2,063,837
                                                                 ============     ============

         Liabilities and Stockholders' Equity
    Deposits:
        Noninterest bearing                                     $     353,189          385,371
        Interest bearing                                            1,319,846        1,294,053
                                                                 ------------     ------------
           Total deposits                                           1,673,035        1,679,424

    Federal funds purchased                                            61,900           13,450
    Securities sold under repurchase agreements                       129,538          129,137
    Accounts payable and accrued expenses                              20,348           18,027
    Other borrowed funds                                               37,272           13,071
    Long-term debt                                                     56,184           64,667
                                                                 ------------     ------------
           Total liabilities                                        1,978,277        1,917,776

    Stockholders' equity:
    Non-voting noncumulative 8.53% preferred stock without
        par value; authorized 100,000 shares; issued and
        outstanding 20,000 shares                                      20,000           20,000
    Common stock without par value; authorized 5,000,000
         shares; issued and outstanding 1,972,161 shares
         at June 30, 1997 (unaudited and 1,978,268 shares
         at December 31, 1996                                           8,700            8,941
    Retained earnings                                                 124,502          116,613
    Unrealized holding gain on investment securities
         available-for-sale, net                                          370              507
                                                                 ------------     ------------
           Total stockholders' equity                                 153,572          146,061
                                                                 ------------     ------------
               Total liabilities and stockholders' equity        $  2,131,849        2,063,837
                                                                 ============     ============



See accompanying notes to unaudited consolidated financial statements.



                                       4



   5


          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

                        Consolidated Statements of Income
                    (Dollars in thousands, except share data)
                                   (Unaudited)



                                           For the three months     For the six months
                                               ended June 30,         ended June 30,
                                           --------------------    --------------------
                                              1997                    1997
                                           (Restated)     1996     (Restated)    1996
                                           ----------  --------    ----------  --------
                                                                   
Interest income:
   Interest and fees on loans              $  34,903     22,703       68,233     44,600
   Interest and dividends on investment
     securities:
      Taxable                                  5,419      3,480       10,762      6,931
      Exempt from Federal taxes                  276        262          527        498
   Interest on deposit with banks                 12         21           97        225
   Interest on Federal funds sold                559        117          711        600
                                           ---------  ---------    ---------  ---------
      Total interest income                   41,169     26,583       80,330     52,854
                                           ---------  ---------    ---------  ---------
Interest expense:
   Interest on deposits                       14,083      9,648       27,470     19,456
   Interest on Federal funds purchased           767        228        1,085        259
   Interest on securities sold under
     repurchase agreements                     1,486        977        2,811      2,106
      Interest on other borrowed funds           446         57          519        141
      Interest on long-term debt               1,199        267        2,488        589
                                           ---------  ---------    ---------  ---------
   Total interest expense                     17,981     11,177       34,373     22,551
                                           ---------  ---------    ---------  ---------

   Net interest income                        23,188     15,406       45,957     30,303
Provision for loan losses                      1,058        661        2,281      1,152
                                           ---------  ---------    ---------  ---------
   Net interest income after provision
     for loan losses                          22,130     14,745       43,676     29,151
Other operating income:
   Income from fiduciary activities              989        661        2,022      1,523
   Service charges on deposit accounts         2,531      1,803        4,910      3,518
   Data processing                             1,826      1,781        3,667      3,822
   Other service charges, commissions, and
     fees                                      1,047        669        1,939      1,293
   Net investment securities gains                15         --           73          2
   Other income                                  452        281          874        582
                                           ---------  ---------    ---------  ---------
      Total other operating income             6,860      5,195       13,485     10,740
                                           ---------  ---------    ---------  ---------
Other operating expenses:
   Salaries and wages                          7,215      5,000       14,202      9,897
   Employee benefits                           1,832      1,293        4,991      2,663
   Occupancy expense, net                      1,481      1,001        3,081      2,040
   Furniture and equipment expense             1,935      1,461        3,754      2,751
   Other real estate expense (income), net        19        (70)        (115)      (159)
   Other expenses                              5,798      3,090       11,233      6,015
                                           ---------  ---------    ---------  ---------
      Total other operating expenses          18,280     11,775       37,146     23,207
                                           ---------  ---------    ---------  ---------

Income before income taxes                    10,710      8,165       20,015     16,684
Income tax expense                             4,076      3,131        7,624      6,414
                                           ---------  ---------    ---------  ---------

      Net income                           $   6,634      5,034       12,391     10,270
                                           =========  =========    =========  =========


Net income per common share                $    3.13       2.58         5.82       5.26
                                           =========  =========    =========  =========
Dividends per common share                       .98        .81         1.85       1.52
                                           =========  =========    =========  =========

Weighted average common shares
   outstanding                             1,984,562  1,948,672    1,984,177  1,950,723
                                           =========  =========    =========  =========



See accompanying notes to unaudited consolidated financial statements.


                                       5

   6


         FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

                      Consolidated Statements of Cash Flows
                  (Dollars in thousands, except per share data)
                                   (Unaudited)



                                                                        For the six months
                                                                           ended June 30,
                                                                     --------------------------
                                                                        1997
                                                                     (Restated)         1996
                                                                     ----------      ----------
                                                                               
Cash flows from operating activities:
  Net income                                                          $  12,391       $  10,270
  Adjustments to reconcile net income to net cash provided by
    operating activities:
        Provision for loan and other real estate losses                   2,277           1,152
        Depreciation and amortization                                     4,153           2,239
        Net premium amortization on investment securities                   289             614
        Gain on sales of investments                                        (73)             (2)
        Gain on sales of other real estate owned                           (190)           (218)
        (Gain) loss on sales of property and equipment                      (14)              1
        Provision for deferred income taxes                              (2,178)         (1,476)
        Increase in interest receivable                                  (1,493)         (1,344)
        Decrease in other assets                                          1,202             250
        Increase (decrease) in accounts payable and accrued expenses      1,512            (501)
                                                                      ---------        --------
          Net cash provided by operating activities                      17,876          10,985
                                                                      ---------        --------
Cash flows from investing activities:
    Purchases of investment securities:
          Held-to-maturity                                             (333,219)        (40,994)
          Available-for-sale                                               (237)        (11,509)
    Proceeds from maturities and paydowns of investment securities:
          Held-to-maturity                                              298,953          53,773
          Available-for-sale                                              9,579           8,754
    Proceeds from sales of available-for-sale investment securities      31,158              --
    Decrease in interest bearing deposits in banks                        6,508          22,007
    Extensions of credit to customers, net of repayments                (99,191)        (71,642)
    Recoveries of loans charged-off                                       1,652             649
    Proceeds from sales of other real estate                                879             482
    Capital expenditures, net                                            (3,619)         (3,013)
                                                                      ---------        --------
          Net cash used in investing activities                         (87,537)        (41,493)
                                                                      ---------        --------
Cash flows from financing activities:
    Net decrease in deposits                                             (6,389)        (16,582)
    Net increase in Federal funds and repurchase agreements              48,851          11,984
    Net increase in other borrowed funds                                 24,201           3,814
    Proceeds from long-term borrowings                                    1,750             424
    Repayment of long-term borrowings                                   (10,233)         (6,057)
    Proceeds from issuance of common stock                                  352             277
    Payments to retire common stock                                        (639)           (931)
    Dividends paid on common stock                                       (3,656)         (2,957)
    Dividends paid on preferred stock                                      (846)             --
                                                                      ---------        --------
          Net cash provided by (used in) by financing activities         53,391         (10,028)
                                                                      ---------        --------
          Net decrease in cash and cash equivalents                     (16,270)        (40,536)
Cash and cash equivalents at beginning of period                        165,907         143,042
                                                                      ---------        --------
Cash and cash equivalents at end of period                              149,637         102,506
                                                                      =========        ========


Noncash Investing and Financing Activities:
The Company transferred loans of $237 and $197 to other real estate owned during
the six months ended June 30, 1997 and 1996, respectively. In conjunction with
stock option exercises, the Company transferred $46 from accrued liabilites to
stockholders' equity during the six months ended June 30, 1997.



See accompanying notes to unaudited consolidated financial statements.



                                       6

   7



          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

              Notes to Unaudited Consolidated Financial Statements
                             (Dollars in thousands)


 (1)  Basis of Presentation

      In the opinion of management, the accompanying unaudited, restated
      consolidated financial statements contain all adjustments (all of which
      are of a normal recurring nature) necessary to present fairly the
      consolidated financial position at June 30, 1997 and December 31, 1996,
      and the results of consolidated operations and cash flows for each of the
      six month periods ended June 30, 1997 and 1996 in conformity with
      generally accepted accounting principles. The balance sheet information at
      December 31, 1996 is derived from audited consolidated financial
      statements, however, certain reclassifications have been made to conform
      to the June 30, 1997 presentation. For additional information regarding
      the restatement, see Note 10.

      In June 1996, the Financial Accounting Standards Board ("FASB") issued
      Statement of Financial Accounting Standards ("SFAS") No. 125, "Accounting
      for Transfers and Servicing of Financial Assets and Extinguishments of
      Liabilities." SFAS No. 125 requires the Company to recognize as separate
      assets the rights to service mortgage loans for others, whether the
      servicing rights are acquired through purchases or loan originations.
      Servicing rights are initially recorded at fair value based upon the
      present value of estimated future cash flows. Subsequently, the servicing
      rights are assessed for impairment, with impairment losses recognized in
      the statement of income in the period the impairment occurs. For purposes
      of performing the impairment evaluation, the related portfolio must be
      stratified on the basis of certain risk characteristics including loan
      type and note rate. SFAS No. 125 also specifies that financial assets
      subject to prepayment, including loans that can be contractually prepaid
      or otherwise settled in such a way that the holder would not recover
      substantially all of its recorded investment, be measured like debt
      securities available-for-sale or trading securities under SFAS No. 115.
      The Company adopted the provisions of SFAS No. 125 as of January 1, 1997.
      The adoption did not have a material effect on the financial position or
      results of operations of the Company.


(2)   Cash and Cash Equivalents

      For purposes of reporting cash flows, cash and cash equivalents include
      cash on hand, amounts due from banks and Federal funds sold for
      one-day-periods.


(3)   Computation of Earnings Per Share

      Earnings per common share are computed by dividing net income less
      preferred stock dividends by the weighted average number of shares of
      common stock outstanding during the period presented. Stock options
      outstanding are considered common stock equivalents, and are included in
      computations of weighted average shares outstanding.


(4)   Cash Dividends

      On July 21, 1997, the Company paid a cash dividend on second quarter
      earnings of $1.00 per share to stockholders of record on that date. It has
      been the Company's practice to pay quarterly dividends based upon
      earnings. The July 1997 dividend represents 30% of the Company's net
      income for the quarter ended June 30, 1997 without taking into effect
      compensation expense related to stock options.


                                       7



   8

          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

              Notes to Unaudited Consolidated Financial Statements
                             (Dollars in thousands)


(5)   Allowance for Loan Losses

      Transactions in the allowance for loan losses for the three month and six
      month periods ended June 30, 1997 and 1996 are summarized below:



                                           For the three months         For the six months
                                              ended June 30,               ended June 30,
                                           ---------------------        --------------------
                                              1997         1996           1997        1996
                                           --------     --------        --------    --------
                                                                        
   Balance at beginning of period          $ 28,393      15,242          27,797      15,171
   Provision charged to operating expense     1,058         661           2,281       1,152
   Less loans charged-off                    (1,612)       (903)         (2,973)     (1,566)
   Add back recoveries of loans
       previously charged-off                   918         406           1,652         649
                                           --------     -------         -------     -------

   Balance at end of period                $ 28,757      15,406          28,757      15,406
                                           ========     =======         =======     =======



(6)   Other Real Estate Owned (OREO)

      Other real estate owned consists of the following:




                                           June 30,        December 31,
                                              1997              1996
                                           ---------        ------------
                                                      
   Other real estate                       $  1,560             2,057
   Less allowance for OREO losses               462               511
                                           --------           -------
                                           $  1,098             1,546
                                           ========           =======




      A summary of transactions in the allowance for OREO losses follows:



                                            For the three months          For the six months
                                                ended June 30,               ended June 30,
                                            --------------------          -------------------
                                               1997        1996             1997       1996
                                                                          
   Balance at beginning of period            $  466         548              511        554
   Provision (reversal)during the period         (4)         --               (4)        --
   Loss on dispositions                          --          --              (45)        (6)
                                              -----      ------           ------      -----

   Balance at end of period                  $  462         548              462        548
                                             ======      ======           ======      =====





                                       8

   9


          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

              Notes to Unaudited Consolidated Financial Statements
                             (Dollars in thousands)


      Changes in the balance of other real estate owned for the six months ended
      June 30, 1997 and 1996 are summarized as follows:



                                                            Six months ended June 30,
                                                     --------------------------------------
                                                             1997                     1996
                                                            ------                   ------
                                                                         
      Balance at beginning of period                        $2,057                    1,903
      Add transfers from loans                                 237                      197
      Less writedowns charged to reserves                      (45)                      --
      Cash proceeds from sales                       879                      482
      Less gains on sales                            190                      218
                                                     ---                      ---
         Net basis of OREO sold                               (689)                    (264)
                                                            ------                   ------
         Balances, end of period                            $1,560                   $1,836
                                                            ======                   ======



(7)   Acquisitions

      On February 5, 1997, First Interstate Bank of Montana, N.A. purchased the
      assets of Mountain Financial, a loan production office located in Eureka,
      Montana. The total cash purchase price of the assets acquired aggregated
      $1,726, of which $166 was for premises and equipment and the remaining
      $1,560 was for loans acquired.

      During June 1997, the Company finalized its allocation of purchase price
      related to the 1996 acquisitions of First Interstate Bank of Montana,
      N.A., First Interstate Bank of Wyoming, N.A. and Mountain Bank of
      Whitefish. Changes in preliminary estimates of the fair value of loans,
      other assets and other liabilities resulted in a $3.5 million decrease in
      goodwill.

 (8)  Commitments and Contingencies

      In the normal course of business, the Company is named or threatened to be
      named as defendant in various lawsuits, some of which involve claims for
      substantial amounts of actual and/or punitive damages. With respect to
      each of these suits it is the opinion of management, following
      consultation with legal counsel, the suits are without merit or in the
      event the plaintiff prevails, the ultimate liability or disposition
      thereof will not have a material adverse effect on the consolidated
      financial condition or the results of operations. During 1985, the Company
      entered into a partnership agreement with two outside parties for the
      purpose of purchasing certain land and building with an aggregate cost of
      approximately $20,000. The Company is a tenant in the building and owns a
      50% undivided interest in the property. Indebtedness of the partnership in
      the amount of $10,617 at June 30, 1997 is guaranteed by each of the
      partners.

      The Company is a party to financial instruments with off-balance-sheet
      risk in the normal course of business to meet the financing needs of its
      customers. These financial instruments include commitments to extend
      credit and standby letters of credit. These instruments involve, in
      varying degrees, elements of credit and interest rate risk in excess of
      amounts recorded in the consolidated balance sheet.



                                       9

   10


          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

              Notes to Unaudited Consolidated Financial Statements
                             (Dollars in thousands)


      Standby letters of credit and financial guarantees written are conditional
      commitments issued by the Company to guarantee the performance of a
      customer to a third party. Most commitments extend for no more than two
      years. The credit risk involved in issuing letters of credit is
      essentially the same as that involved in extending loan facilities to
      customers. The Company holds various collateral supporting those
      commitments for which collateral is deemed necessary.

      Commitments to extend credit are agreements to lend to a customer as long
      as there is no violation of any condition established in the commitment
      contract. Commitments generally have fixed expiration dates or other
      termination clauses and may require payment of a fee. Since many of the
      commitments are expected to expire without being drawn upon, the total
      commitment amounts do not necessarily represent future cash requirements.
      The Company evaluates each customer's creditworthiness on a case-by-case
      basis. The amount of collateral obtained, if deemed necessary by the
      Company upon extension of credit, is based on management's credit
      evaluation of the customer. Collateral held varies but may include
      accounts receivable, inventory, property, plant and equipment, and
      income-producing commercial properties.


 (9)  Accounting Pronouncements Not Yet Adopted

      In February 1997, the FASB issued SFAS No. 128, "Earnings per Share,"
      which simplifiesthe standards for computing earnings per share ("EPS") by
      replacing the presentation of primary EPS with a presentation of basic EPS
      on the face of the income statement for all entities with complex capital
      structures. SFAS No. 128 also requires a reconciliation of the numerator
      and the denominator of the basic EPS computation to the numerator and
      denominator of the diluted EPS computation.

      Basic EPS excludes dilution and is computed by dividing income available
      to common stockholders by the weighted average number of common shares
      outstanding for the period. Diluted EPS reflects the potential dilution
      that could occur if securities or other contracts to issue common stock
      were exercised or resulted in the issuance of common stock that then
      shared in the earnings of the entity.

      This statement is effective for financial statements issued for periods
      ending after December 15, 1997. Earlier application is not permitted. Once
      effective, this statement requires restatement of all prior period EPS
      data. Pro forma basic and diluted net income per share as determined under
      this statement will not differ from amounts currently reported by the
      Company.

      In February 1997, the FASB issued SFAS No. 129, "Disclosure of Information
      about Capital Structure," which lists required disclosures about capital
      structure that had been included in a number of previously existing
      separate statements and opinions. SFAS No. 129 is effective for financial
      statements for periods ending after December 15, 1997.

      In June 1997, the FASB issued SFAS No. 130, "Reporting Comprehensive
      Income," which establishes standards for reporting and display of
      comprehensive income and its components (revenues, expenses, gains, and
      losses) in a full set of general-purpose financial statements. This
      statement requires that all items required to be recognized under
      accounting standards as components of comprehensive income be reported in
      a financial statement that is displayed with the same prominence as other
      financial statements. This statement does not require a specific format
      for that financial statement but requires that an entity display an amount
      representing comprehensive income for the period in that financial
      statement.




                                       10




   11

          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

              Notes to Unaudited Consolidated Financial Statements
                             (Dollars in thousands)


      This statement requires that an entity (a) classify items of other
      comprehensive income by their nature in a financial statement and (b)
      display the accumulated balance of other comprehensive income separately
      from retained earnings and additional paid-in-capital in the equity
      section of a statement of financial position.

      This statement is effective for fiscal years beginning after December 15,
      1997. Reclassification of financial statements for earlier periods
      provided for comparative purposes is required.


(10)  Restatement

      In 2000, the Company determined that fixed plan accounting treatment
      historically afforded its Stock Option Plan was not consistent with
      certain elements of the Stock Option Plan's operations and accounting
      guidance contained in APB Opinion 25 and related interpretations.
      Accordingly, the Company has restated the accompanying unaudited 1997
      consolidated financial statements to reflect variable plan accounting
      treatment for awards made pursuant to its Stock Option Plan.

      The following is a summary of the effect of such restatement on the
      Company's consolidated financial statements:



                                                             June 30, 1997
                                                     ---------------------------
                                                     Originally
                                                      Reported          Restated
                                                     ----------        ---------
                                                                 
      Consolidated Balance Sheets

      Deferred tax asset                             $    6,629            7,152
      Other assets                                       15,722           15,697
      Total assets                                    2,131,351        2,131,849
      Accounts payable and accrued expenses              19,497           20,348
      Common stock                                        8,350            8,700
      Retained earnings                                 125,205          124,502
                                                     ==========        =========





                                                     For the three months ended
                                                           June 30, 1997
                                                     ---------------------------
                                                     Originally
                                                      Reported         Restated
                                                     ----------        ---------
                                                                 
      Consolidated Statements of Income

      Employee benefits                              $    1,836            1,832
                                                     ==========        =========

      Income before income taxes                     $   10,706           10,710
      Income tax expense                                  4,074            4,076
                                                     ----------        ---------

      Net income                                     $    6,632            6,634
                                                     ==========        =========

      Net income per common share                    $     3.13             3.13
                                                     ==========        =========



                                       11


   12


          FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC. AND SUBSIDIARIES

              Notes to Unaudited Consolidated Financial Statements
                             (Dollars in thousands)




                                                      For the six months ended
                                                           June 30, 1997
                                                     ---------------------------
                                                     Originally
                                                      Reported          Restated
                                                     -----------       ---------
                                                                 
      Consolidated Statements of Income

      Employee benefits                              $    3,832            4,991
                                                     ==========        =========

      Income before income taxes                     $   21,174           20,015
      Income tax expense                                  8,080            7,624
                                                     ----------        ---------

      Net income                                     $   13,094           12,391
                                                     ==========        =========

      Net income per common share                    $     6.17             5.82
                                                     ==========        =========



      Included in the 1997 restated financial statement amounts for the six
      months ended June 30, 1997 are compensation expense of $1,000 and a
      reduction in tax expense of $394 related to periods prior to 1997. The
      impact on 1997 net income and earnings per share is a decrease to net
      income of $606 and a decrease of $0.32 to earnings per share.



                                       12

   13


                                     ITEM 2.

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS

                             (Dollars in thousands)

The following discussion focuses on significant factors affecting the financial
condition and results of operations of First Interstate BancSystem of Montana,
Inc. ("the Company") during the three and six month periods ended June 30, 1997,
with comparisons to 1996 as applicable.

ACQUISITION ACTIVITY

On October 1, 1996, the Company purchased all of the outstanding capital stock
of First Interstate Bank of Wyoming, N.A. and First Interstate Bank of Montana,
N.A.; and, on December 18, 1996 , acquired all of the outstanding capital stock
of Mountain Bank of Whitefish (collectively, "the acquired banks"). The
transactions were accounted for under purchase accounting rules. Goodwill,
representing the excess of cost over net assets acquired, is being amortized
using the straight-line method over periods of 15 to 25 years.

ASSET LIABILITY MANAGEMENT

The primary objective of the company's asset liability management process is to
optimize net interest income while prudently managing balance sheet risks by
understanding the levels of risk accompanying its decisions and monitoring and
managing these risks. The ability to optimize net interest income is largely
dependent on the Company's ability to manage the sensitivity of net interest
income to actual or potential changes in interest rates. The Company uses
interest sensitivity "gap" analysis, income simulation models, and, to a limited
extent, duration analysis (including estimation of borrower prepayment options)
to evaluate the potential effects of changing interest rates on its interest
margin.

EARNING ASSETS

Earning assets of $1.9 billion at June 30, 1997 were $96.2 million, or 5%,
higher compared to December 31, 1996 primarily due to growth in loan volume. The
mix of earning assets changed little from December 31, 1996 with net loans
comprising approximately 77%, held-to-maturity investment securities comprising
approximately 17% and interest bearing deposits, available-for-sale investment
securities and federal funds sold comprising the remaining 6%.

Loans. All major categories of loans showed increases in volumes from December
31, 1996 due to continued strong economic conditions in the communities served
by the Company's banking subsidiaries and some seasonal increases, particularly
in agricultural lending, following traditional paydowns during the fourth
quarter. Growth in net loans of 7% during the first six months of 1997 is
slightly lower than the 8.1% growth rate experienced during the same period of
1996 indicating a slight slowing in the economy that has been attributed to a
slowing of consumer borrowing as consumer debt rises.

Investment Securities. The Company manages its investment portfolio within
established policies which provide for the management of interest rate
sensitivity risks, to meet earning objectives, to provide ample liquidity and to
provide adequate collateral to support deposit and repurchase agreement
activities. Cash proceeds from maturities, sales and principal payments during
the first six months of 1997 were generally reinvested in held-to-maturity
investment securities or used to provide additional liquidity to fund increases
in other earning assets.

Federal Funds Sold. Federal funds sold balances increased approximately $14
million from December 31, 1996 as the Company's banking subsidiaries funded the
cash requirements of correspondent banks. Average federal funds sold balances
during the first half of 1997 of $25,753 and during 1996 of $25,462 showed only
slight variance.



                                       13

   14


Income from Earning Assets. Income from earning assets was $41.2 million for the
three month period ended June 30, 1997, as compared to $26.6 million for the
same period in 1996. The increase of $14.6 million or 55% resulted from
increases in earning assets through internal growth and the bank acquisitions
discussed previously. Exclusive of income from the acquired banks, interest
income for the three months ended June 30, 1997 increased approximately 13% from
the same period in 1996. Yields on average total earning assets during the
second quarter of 1997 and 1996 were 8.81% and 8.90%, respectively.

For the six month periods ended June 30, 1997 and 1996, income from earning
assets was $80.3 million and $52.9 million, respectively. Approximately 84% of
the increase is due to interest income of the acquired banks. The yield on
average total earning assets for the first six months of 1997 was 8.78% compared
to 8.85% during 1996.

FUNDING SOURCES

The Company utilizes various traditional funding sources to support its earning
asset portfolio including deposits, borrowings, federal funds purchased and
repurchase agreements.

Deposits. Overall, total deposits decreased slightly from December 31, 1996 to
June 30, 1997. Decreases in non-interest bearing deposits of $32.0 million
during the first six months of 1997, were partially offset by increases in
interest-bearing deposits of $25.8 million during the same period. The Company
historically has experienced similar seasonal cycles in overall deposit growth
during the first half of the year.

Federal Funds Purchased and Other Borrowed Funds. Federal funds purchased for
one day periods and other borrowed funds consisting primarily of short-term
borrowings from the Federal Home Loan Bank increased $72.7 million from December
31, 1996 to June 30, 1997. The increased borrowings were the result of funding
requirements related to increases in loans and Federal funds sold during the
first half of 1997.

Long Term Debt. During the first half of 1997, the Company reduced its long-term
indebtedness by $8.5 million or 14%. Payments of approximately $8.4 million on
the Company's revolving term debt were funded by earnings of the Company's
banking subsidiaries.

Expense of Interest Bearing Liabilities. The Company's interest expense for the
three months ended June 30, 1997 was $18.0 million, a $ 6.8 million or 61%
increase over the same period in 1996. Interest expense of the acquired banks
and additional interest costs to fund the acquisitions aggregated approximately
$6 million during the second quarter and $10.6 million year-to-date. The
remaining increase was caused by higher levels of interest bearing liabilities,
particularly federal funds purchased for one day periods and other borrowed
funds. The cost of total average interest bearing liabilities during the first
six months of 1997 of 4.4% did not change from the same period in 1996.

Provision for Loan Losses. The balance of the provision for loan losses is
maintained at a level that is, in management's judgment, adequate to absorb
losses inherent in the loan portfolio given past, present and expected
conditions. The provision for loan losses increased $397 and $1,129 for the
three and six month periods ended June 30, 1997, respectively, from the same
periods in 1996. A significant portion of these increases relate directly to the
acquired banks, $353 for the three month period and $919 for the six month
period. The remaining increases are associated with growth in loan volumes and
slight deteriorations in the agricultural and consumer loan portfolios. Although
non-performing and problem assets have shown some increases, the fundamental
economies within the Company's markets remain strong.

LIQUIDITY

The Company actively manages its liquidity position through established policies
and procedures. Management has also developed contingency plans to address
potential liquidity needs. The Company's current liquidity position is supported
largely through core deposits and from its investment portfolio.

The current investment portfolio contains a mix of maturities which provide a
structured flow of maturing and reinvestable funds that can be converted to
cash, should the need arise. Maturing balances in the loan portfolio also
provide options for managing cash flows and provide an important source of
intermediate and long-term liquidity.



                                       14



   15



Alternate sources of liquidity are provided by Federal funds lines carried with
upstream and downstream correspondent banks. Additional liquidity could also be
generated through borrowings from the Federal Reserve Bank of Minneapolis and
the Federal Home Loan Bank of Seattle. At June 30, 1997, the Company had $8.8
million available on its revolving term loan.

OTHER OPERATING INCOME AND EXPENSE

OTHER OPERATING INCOME

Exclusive of income attributable to the acquired banks, other operating income
increased $261 or 5% during the second quarter of 1997 and decreased less than
1% during the six months ended June 30, 1997 compared to the same periods in the
prior year. Trust and data division revenues contributed to the increase in
other operating income during the second quarter, contributing an additional
$121 of income primarily due to increases in number of customers and transaction
volumes. Year-to-date trust and data revenues, however, show declines from the
same period last year due to non-recurring accrual adjustments made during
January 1996. Service charges on deposit accounts also contributed to the
overall increase in other income, up 5% for the quarter and year-to-date.

OTHER OPERATING EXPENSES

Overall, quarter-to-date and year-to-date other operating expense increased
approximately 55% and 60% , respectively, from the same periods in the prior
year. During the first quarter of 1997, the Company recorded compensation
expense related to stock options of $1.0 million for periods prior to 1997 as a
result of restating the financial statements to reflect variable plan accounting
for awards made pursuant to the Company's stock option plan. For additional
information regarding the restatement, see "Restatement Explanatory Note"
included in Part I and "Notes to Unaudited Consolidated Financial
Statements-Restatement" included in Part I, Item 1. Expenses incurred directly
by the acquired banks aggregated approximately $3.6 million for the three months
ended June 30, 1997 and $8.1 million for the six months ended June 30, 1997. In
addition to the direct other operating expenses incurred by the acquired banks,
other operating expenses of the holding company and other banking subsidiaries
increased, particularly in the operations and data divisions, due to the
additional costs associated with providing support services to the acquired
banks.

Salaries and benefits expense. Salaries and benefits expense of $19.2 million
for the six months ended June 30, 1997 increased 53% over the same period in
1996. Salaries and benefits expenses for the three month period ended June 30,
1997 increase 44% over the same period in 1996. A significant portion of the
quarter-to-date and year-to-date increases are attributable to the acquisitions
and increased staffing levels necessary to provide operational and other support
functions to the acquired banks. In addition, $1,000 of the increase relates to
periods prior to 1997 and is the result of the restatement discussed above. The
remaining increases are primarily inflationary in nature.

Furniture, equipment and occupancy expense. Exclusive of increases directly
related to the acquired banks, occupancy, furniture and equipment expenses
increased approximately $255 or 10% during the three month period ended June 30,
1997 and $654 or 14% for the six month period ended June 30, 1997. Increases are
principally due to increased depreciation on data processing equipment upgrades
occurring during the second half of 1996 and the first half of 1997 and the
continuing upgrades and expansion of the Company's micro-computer and ATM
networks.

Other expenses. Other expenses increased $2.6 million for the three months ended
June 30, 1997 compared to the same period in the prior year and $5.1 million for
the six months ended June 30, 1997 compared to the same period in the prior
year. Of these increases, $1.2 million and $2.9 million for the three and six
month periods, respectively, relate directly to the acquired banks. The
remaining quarter-to-date and year-to-date increases from the previous year are
principally due to increases in advertising and public relations costs,
additional legal and professional costs, and increases in postage, supply and
telephone expenses.

Exclusive of expenses directly related to the acquired branches, advertising and
public relation expenses for the three and six month periods ending June 30,
1997 were approximately $229 higher than the same periods in 1996. These
increases are attributable to budgeted increases in advertising expense of
approximately $109 for the first half of 1997 combined with fluctuations in the
timing of public relation events in the current year compared to 1996.



                                       15



   16


Legal and professional expenses increased $367 during the three months ended
June 30, 1997 compared to the same period in the previous year and $634 during
the first half of 1997 compared to the first half of 1996. Increases of $300 and
$484, not directly related to the acquired banks, are due principally to
consulting fees associated with revision of the Company's employee job
evaluation system and accruals for financial planning activities.

Office supply, postage and telephone expenses increased $273 during the second
quarter and $588 year-to-date compared to the same periods in 1996, exclusive of
expenses incurred by the acquired banks. These additional expenses are primarily
due to increased costs resulting from growth in the Company's customer deposit
base.

The above increases in other expense were offset by decreases in royalty fees of
$151 during the first half of 1997 due to the termination of a franchise
agreement with First Interstate Bancorp during May 1996.

Other quarter-to-date and year-to-date variances in other expenses from the
previous year are not considered individually significant.




                                       16


   17



                           PART II. OTHER INFORMATION



ITEM 1         LEGAL PROCEEDINGS

                  None

ITEM 2         CHANGES IN SECURITIES

                  None

ITEM 3         DEFAULTS UPON SENIOR SECURITIES

                  None

ITEM 4         SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

                  None

ITEM 5         OTHER INFORMATION

                  Not applicable or not required

ITEM 6         EXHIBITS AND REPORTS OF FORM 8-K

                  (a) Exhibits.
                      27. Financial Data Schedule.

                  (b) No reports of Form 8-K were filed for the quarter ended
                      June 30, 1997.





                                       17


   18



                                   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:

                                    FIRST INTERSTATE BANCSYSTEM OF MONTANA, INC.



Date   May 16, 2001                 /s/ THOMAS W. SCOTT
     -------------------            --------------------------------------------
                                        Thomas W. Scott
                                        Chief Executive Officer




Date   May 16, 2001                 /s/ TERRILL R. MOORE
     -------------------            --------------------------------------------
                                        Terrill R. Moore
                                        Senior Vice President
                                          and Chief Financial Officer








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