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

                                    FORM 10-Q

[X]  Quarterly report pursuant to section 13 or 15(d) of the Securities Exchange
     Act of 1934

     For the quarterly period ended March 31, 2006

[ ]  Transition report pursuant to section 13 or 15(d) of the Securities
     Exchange Act of 1934

     For the transition period from _________ to _________

                             COMMISSION FILE 0-18911

                              GLACIER BANCORP, INC.
             (Exact name of registrant as specified in its charter)


                                                          
                 MONTANA                                          81-0519541
     (State or other jurisdiction of                            (IRS Employer
     incorporation or organization)                          Identification No.)



                                                               
   49 Commons Loop, Kalispell, Montana                              59901
(Address of principal executive offices)                          (Zip Code)


Registrant's telephone number, including area code (406) 756-4200

Not Applicable
(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
                                       ---    ---

Indicate by checkmark whether the registrant is a large accelerated filer, or an
accelerated filer, or a non-accelerated filer (as defined in Rule 12b-2 of the
Exchange Act).

Large Accelerated Filer  X    Accelerated Filer       Non-Accelerated Filer
                        ---                     ---                         ---

Indicate by checkmark whether the registrant is a shell company (as defined in
Rule 12b-2 of the Exchange Act). Yes     No  X
                                     ---    ---

The number of shares of Registrant's common stock outstanding on April 27, 2006
was 32,336,503. No preferred shares are issued or outstanding.



                              GLACIER BANCORP, INC.
                          QUARTERLY REPORT ON FORM 10-Q

                                      INDEX



                                                                             Page #
                                                                             ------
                                                                          
PART I. FINANCIAL INFORMATION

   Item 1 - Financial Statements

      Condensed Consolidated Statements of Financial Condition - Unaudited
      March 31, 2006, and March 31, 2005 and audited December 31, 2005 ...      3

      Condensed Consolidated Statements of Operations -
      Unaudited three months ended March 31, 2006 and 2005 ...............      4

      Condensed Consolidated Statements of Stockholders' Equity and Other
      Comprehensive Income - Audited year ended December 31, 2005
      and unaudited three months ended March 31, 2006 ....................      5

      Condensed Consolidated Statements of Cash Flows -
      Unaudited three months ended March 31, 2006 and 2005 ...............      6

      Notes to Condensed Consolidated Financial Statements - Unaudited ...      7

   Item 2 - Management's Discussion and Analysis
            of Financial Condition and Results of Operations .............     20

   Item 3 - Quantitative and Qualitative Disclosure about Market Risk ....     25

   Item 4 - Controls and Procedures ......................................     25

PART II. OTHER INFORMATION ...............................................     25

   Item 1 - Legal Proceedings ............................................     25

   Item 1A - Risk Factors ................................................     25

   Item 2 - Unregistered Sales of Equity Securities and Use of Proceeds ..     25

   Item 3 - Defaults Upon Senior Securities ..............................     26

   Item 4 - Submission of Matters to a Vote of Security Holders ..........     26

   Item 5 - Other Information ............................................     26

   Item 6 - Exhibits .....................................................     26

   Signatures ............................................................     27




                              GLACIER BANCORP, INC.
            CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION



                                                                                 MARCH 31,    December 31,     March 31
                                                                                    2006          2005           2005
                                                                                -----------   ------------   -----------
                                                                                (UNAUDITED)                  (unaudited)
                                                                                                    
(Dollars in thousands, except per share data)
ASSETS:
   Cash on hand and in banks ................................................   $   105,474       111,418         82,600
   Federal funds sold .......................................................         9,155         7,537         14,751
   Interest bearing cash deposits ...........................................        21,343        15,739          8,208
                                                                                -----------    ----------     ----------
      Cash and cash equivalents .............................................       135,972       134,694        105,559
   Investment securities, available-for-sale ................................       923,382       967,970      1,148,153
   Loans receivable, net ....................................................     2,502,279     2,374,647      1,860,295
   Loans held for sale ......................................................        25,153        22,540         19,637
   Premises and equipment, net ..............................................        86,179        79,952         63,720
   Real estate and other assets owned, net ..................................           778           332          2,003
   Accrued interest receivable ..............................................        19,317        19,923         16,151
   Core deposit intangible, net .............................................         7,594         8,015          7,102
   Goodwill .................................................................        79,099        79,099         60,189
   Other assets .............................................................        20,405        19,172         23,631
                                                                                -----------    ----------     ----------
                                                                                $ 3,800,158     3,706,344      3,306,440
                                                                                ===========    ==========     ==========
LIABILITIES AND STOCKHOLDERS' EQUITY:
   Non-interest bearing deposits ............................................   $   683,201       667,008        528,038
   Interest bearing deposits ................................................     2,010,198     1,867,704      1,448,643
   Advances from Federal Home Loan Bank of Seattle ..........................       505,209       402,191        858,961
   Securities sold under agreements to repurchase ...........................       132,207       129,530         79,148
   Other borrowed funds .....................................................         2,774       187,692          5,834
   Accrued interest payable .................................................         8,537         7,437          6,048
   Deferred tax liability ...................................................         2,098         2,746          4,782
   Subordinated debentures ..................................................        85,000        85,000         80,000
   Other liabilities ........................................................        26,543        23,797         21,537
                                                                                -----------    ----------     ----------
      Total liabilities .....................................................     3,455,767     3,373,105      3,032,991
                                                                                ===========    ==========     ==========
   Preferred shares, $.01 par value per share. 1,000,000 shares authorized
      None issued or outstanding ............................................            --            --             --
   Common stock, $.01 par value per share. 78,125,000 shares authorized .....           323           322            309
   Paid-in capital ..........................................................       265,765       262,383        229,496
   Retained earnings - substantially restricted .............................        78,171        69,713         43,467
   Accumulated other comprehensive income ...................................           132           821            177
                                                                                -----------    ----------     ----------
      Total stockholders' equity ............................................       344,391       333,239        273,449
                                                                                -----------    ----------     ----------
                                                                                $ 3,800,158     3,706,344      3,306,440
                                                                                ===========    ==========     ==========
      Number of shares outstanding ..........................................    32,314,112    32,172,547     30,853,644
      Book value per share ..................................................   $     10.66         10.36           8.86


See accompanying notes to condensed consolidated financial statements.


                                        3



                              GLACIER BANCORP, INC.
                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS



                                                              THREE MONTHS ENDED MARCH 31,
                                                              ----------------------------
                                                                    2006         2005
                                                                -----------   ----------
                                                                        
(UNAUDITED - dollars in thousands, except per share data)
INTEREST INCOME:
   Real estate loans ......................................     $    10,989        6,615
   Commercial loans .......................................          25,525       16,524
   Consumer and other loans ...............................           8,865        5,730
   Investment securities and other ........................          10,573       11,638
                                                                -----------   ----------
      Total interest income ...............................          55,952       40,507
                                                                -----------   ----------
INTEREST EXPENSE:
   Deposits ...............................................          11,291        4,069
   Federal Home Loan Bank of Seattle advances .............           4,796        5,243
   Securities sold under agreements to repurchase .........           1,290          398
   Subordinated debentures ................................           1,429        1,555
   Other borrowed funds ...................................             838          786
                                                                -----------   ----------
      Total interest expense ..............................          19,644       12,051
                                                                -----------   ----------
NET INTEREST INCOME .......................................          36,308       28,456
   Provision for loan losses ..............................           1,165        1,490
                                                                -----------   ----------
      Net interest income after provision for loan
         losses ...........................................          35,143       26,966
                                                                -----------   ----------
NON-INTEREST INCOME:
   Service charges and other fees .........................           6,406        5,204
   Miscellaneous loan fees and charges ....................           1,811        1,278
   Gains on sale of loans .................................           2,190        2,092
   Loss on sale of investments ............................              --          (30)
   Other income ...........................................             749          564
                                                                -----------   ----------
      Total non-interest income ...........................          11,156        9,108
                                                                -----------   ----------
NON-INTEREST EXPENSE:
   Compensation, employee benefits
      and related expenses ................................          15,311       10,944
   Occupancy and equipment expense ........................           3,491        2,855
   Outsourced data processing expense .....................             724          232
   Core deposit intangibles amortization ..................             420          283
   Other expenses .........................................           5,881        4,760
                                                                -----------   ----------
      Total non-interest expense ..........................          25,827       19,074
                                                                -----------   ----------
EARNINGS BEFORE INCOME TAXES ..............................          20,472       17,000
   Federal and state income tax expense ...................           6,843        5,480
                                                                -----------   ----------
NET EARNINGS ..............................................     $    13,629       11,520
                                                                ===========   ==========
Basic earnings per share ..................................     $      0.42         0.37
Diluted earnings per share ................................     $      0.42         0.37
Dividends declared per share ..............................     $      0.16         0.14
Return on average assets (annualized) .....................            1.48%        1.50%
Return on average equity (annualized) .....................           16.21%       17.06%
Average outstanding shares - basic ........................      32,252,158   30,764,368
Average outstanding shares - diluted ......................      32,826,467   31,305,788


See accompanying notes to condensed consolidated financial statements.


                                        4


                              GLACIER BANCORP, INC.
            CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                         AND OTHER COMPREHENSIVE INCOME
                    AUDITED YEAR ENDED DECEMBER 31, 2005 AND
                  UNAUDITED THREE MONTHS ENDED MARCH 31, 2006



                                                                                      Retained     Accumulated     Total
                                                       Common Stock                   earnings     other comp-    stock-
                                                   -------------------   Paid-in   substantially    rehensive    holders'
                                                     Shares     Amount   capital     restricted       income      equity
                                                   ----------   ------   -------   -------------   -----------   --------
                                                                                               
(Dollars in thousands, except per share data)
Balance at December 31, 2004 ...................   30,686,763    $307    227,552       36,391        5,934       270,184
Comprehensive income:
   Net earnings ................................           --      --         --       52,373           --        52,373
   Unrealized loss on securities, net of
      reclassification adjustment and taxes ....           --      --         --           --       (5,113)       (5,113)
                                                                                                                 -------
Total comprehensive income .....................                                                                  47,260
                                                                                                                 -------
Cash dividends declared ($.60 per share) .......           --      --         --      (19,051)          --       (19,051)
Stock options exercised ........................      397,770       4      5,154           --           --         5,158
Stock issued in connection with
   acquisitions ................................    1,088,014      11     28,427           --           --        28,438
Acquisition of fractional shares ...............           --      --         (8)          --           --            (8)
Tax benefit from stock related compensation ....           --      --      1,258           --           --         1,258
                                                   ----------    ----    -------      -------       ------       -------
Balance at December 31, 2005 ...................   32,172,547    $322    262,383       69,713          821       333,239
Other comprehensive income:
   Net earnings ................................           --      --         --       13,629           --        13,629
   Unrealized loss on securities, net of
   reclassification adjustment and taxes .......           --      --         --           --         (689)         (689)
                                                                                                                 -------
Total other comprehensive income ...............                                                                  12,940
                                                                                                                 -------
Cash dividends declared ($.16 per share) .......           --      --         --       (5,171)          --        (5,171)
Stock options exercised ........................      141,565       1      2,185           --           --         2,186
Stock based compensation and tax benefit .......           --      --      1,197           --           --         1,197
                                                   ----------    ----    -------      -------       ------       -------
Balance at March 31, 2006 (unaudited) ..........   32,314,112    $323    265,765       78,171          132       344,391
                                                   ==========    ====    =======      =======       ======       =======


See accompanying notes to condensed consolidated financial statements.


                                       5



                              GLACIER BANCORP, INC.
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS



                                                                          THREE MONTHS ENDED MARCH 31,
                                                                          ----------------------------
                                                                                 2006       2005
                                                                              ---------   --------
                                                                                    
(UNAUDITED - dollars in thousands)
OPERATING ACTIVITIES:
   NET CASH PROVIDED BY OPERATION ACTIVITIES ..........................       $  18,854      9,034
                                                                              ---------   --------
INVESTING ACTIVITIES:
   Proceeds from sales, maturities and prepayments of
      investments available-for-sale ..................................          43,209    153,703
   Purchases of investments available-for-sale ........................            (792)  (103,175)
   Principal collected on installment and commercial loans ............         249,640    142,784
   Installment and commercial loans originated or
      acquired ........................................................        (350,179)  (212,076)
   Principal collections on mortgage loans ............................          89,622     80,378
   Mortgage loans originated or acquired ..............................        (117,881)   (97,864)
   Net purchase of FHLB and FRB stock .................................            (434)       (14)
   Acquisition of First National Bank - West ..........................              --    (18,139)
   Net addition of premises and equipment .............................          (7,715)    (4,899)
                                                                              ---------   --------
      NET CASH USED IN INVESTING ACTIVITIES ...........................         (94,530)   (59,302)
                                                                              ---------   --------
FINANCING ACTIVITIES:
   Net increase in deposits ...........................................         158,688     22,223
   Net (decrease) increase in FHLB advances and other borrowed funds ..         (81,900)    40,805
   Net increase in securities sold under repurchase agreements ........           2,677      2,990
   Cash dividends paid ................................................          (5,171)    (4,444)
   Excess tax benefits from stock options .............................             474         --
   Proceeds from exercise of stock options and other stock issued .....           2,186      1,946
                                                                              ---------   --------
      NET CASH PROVIDED BY FINANCING ACTIVITIES .......................          76,954     63,520
                                                                              ---------   --------
      NET INCREASE IN CASH AND CASH EQUIVALENTS .......................           1,278     13,252
   CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD ...................         134,694     92,307
                                                                              ---------   --------
   CASH AND CASH EQUIVALENTS AT END OF PERIOD .........................       $ 135,972    105,559
                                                                              =========   ========
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
      Cash paid during the period for: Interest........................       $  18,544     11,098
                                       Income taxes....................       $     380         --


See accompanying notes to condensed consolidated financial statements.


                                       6


NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

1)   Basis of Presentation

     In the opinion of management, the accompanying unaudited condensed
     consolidated financial statements contain all adjustments (consisting of
     normal recurring adjustments) necessary for a fair presentation of Glacier
     Bancorp Inc.'s (the "Company") financial condition as of March 31, 2006,
     and March 31, 2005, stockholders' equity for the three months ended March
     31, 2006, the results of operations for the three months ended March 31,
     2006 and 2005, and cash flows for the three months ended March 31, 2006 and
     2005. The condensed consolidated statement of financial condition and
     statement of stockholders' equity and other comprehensive income of the
     Company as of December 31, 2005 have been derived from the audited
     consolidated statements of the Company as of that date.

     The accompanying condensed consolidated financial statements do not include
     all of the information and footnotes required by the accounting principals
     generally accepted in the United States of America for complete financial
     statements. These condensed consolidated financial statements should be
     read in conjunction with the consolidated financial statements and notes
     thereto contained in the Company's Annual Report on Form 10-K for the year
     ended December 31, 2005. Operating results for the three months ended March
     31, 2006 are not necessarily indicative of the results anticipated for the
     year ending December 31, 2006. Certain reclassifications have been made to
     the 2005 financial statements to conform to the 2006 presentation.

2)   Organizational Structure

     The Company, headquartered in Kalispell, Montana, is a Montana corporation
     incorporated in 2004 as a successor corporation to the Delaware corporation
     incorporated in 1990. The Company is the parent company for nine wholly
     owned banking subsidiaries: Glacier Bank ("Glacier"), First Security Bank
     of Missoula ("First Security"), Western Security Bank ("Western"), Big Sky
     Western Bank ("Big Sky"), Valley Bank of Helena ("Valley"), and Glacier
     Bank of Whitefish ("Whitefish"), all located in Montana, Mountain West Bank
     ("Mountain West") which is located in Idaho, Utah, and Washington, Citizens
     Community Bank ("Citizens") located in Idaho, and First National Bank -
     West ("First National") located in Wyoming. In addition, the Company owns
     three subsidiaries, Glacier Capital Trust II ("Glacier Trust II"), Glacier
     Capital Trust III ("Glacier Trust III"), and Citizens (ID) Statutory Trust
     I ("Citizens Trust I") for the purpose of issuing trust preferred
     securities and in accordance with Financial Accounting Standards Board
     Interpretation 46(R) the subsidiaries are not consolidated into the
     Company's financial statements. The Company does not have any off-balance
     sheet entities.

     On February 1, 2006, Glacier Capital Trust I, whose common equity was
     wholly owned by the Company, had 1,400,000 shares of trust preferred
     securities redeemed and the Subordinated Debentures of $35,000,000 paid.
     The Subordinated Debentures were replaced by Glacier Trust III.

     On January 31, 2006, 35,000 shares of trust preferred shares were issued by
     Glacier Trust III whose common equity is wholly owned by the Company. The
     Trust Preferred Securities bear a cumulative fixed interest rate of 6.078%
     for the first five years and then converts to a three month LIBOR plus
     1.29% rate adjustable quarterly for the remaining term until maturity on
     April 7, 2036. Interest distributions are payable quarterly. The Trust
     Preferred Securities are subject to mandatory redemption upon repayment of
     the Subordinated Debentures of $35,000,000 at their stated maturity date or
     their earlier redemption in an amount equal to their liquidation amount
     plus accumulated and unpaid distributions to the date of redemption.


                                        7



     The following abbreviated organizational chart illustrates the various
     relationships:

<Table>

                                        ------------------------
                                          Glacier Bancorp, Inc.
                                        (Parent Holding Company)
                                        ------------------------

                                                                                

- --------------------------   -------------------------      ------------------------     -------------------------------
     Glacier Bank                 Mountain West Bank          First Security Bank             Western Security Bank
  (Commercial bank)               (Commercial bank)              of Missoula                    (Commercial bank)
                                                               (Commercial bank)
- --------------------------   -------------------------      ------------------------     -------------------------------

- --------------------------   -------------------------      ------------------------     -------------------------------
 First National Bank - West           Big Sky                     Valley Bank                      Glacier Bank
   (Commercial bank)                Western Bank                   of Helena                       of Whitefish
                                  (Commercial bank)             (Commercial bank)                (Commercial bank)
- --------------------------   -------------------------      ------------------------     -------------------------------

- --------------------------   -------------------------      ------------------------     -------------------------------
  Citizens Community Bank    Glacier Capital Trust II       Glacier Capital Trust III     Citizens (ID) Statutory Trust I
     (Commercial bank)
- --------------------------   -------------------------      ------------------------     -------------------------------



3)   Ratios

     Returns on average assets and average equity were calculated based on daily
     averages.

4)   Dividends Declared

     On March 29, 2006, the Board of Directors declared a $.16 per share
     quarterly cash dividend payable on April 20, 2006 to stockholders of record
     on April 11, 2006.

5)   Computation of Earnings Per Share

     Basic earnings per common share is computed by dividing net earnings by the
     weighted average number of shares of common stock outstanding during the
     period presented. Diluted earnings per share is computed by including the
     net increase in shares as if dilutive outstanding stock options were
     exercised, using the treasury stock method.

     The following schedule contains the data used in the calculation of basic
     and diluted earnings per share:



                                               Three           Three
                                            months ended   months ended
                                           Mar. 31, 2006   Mar. 31, 2005
                                           -------------   -------------
                                                     
Net earnings available to common
   stockholders ........................    $13,629,000    11,520,000
Average outstanding shares - basic .....     32,252,158    30,764,368
Add: Dilutive stock options ............        574,309       541,420
                                            -----------    ----------
Average outstanding shares - diluted ...     32,826,467    31,305,788
                                            ===========    ==========
Basic earnings per share ...............    $      0.42          0.37
                                            ===========    ==========
Diluted earnings per share .............    $      0.42          0.37
                                            ===========    ==========


     There were approximately 323,195 and 591,250 average shares excluded from
     the three months ended diluted share calculation as of March 31, 2006, and
     2005, respectively, due to the option exercise price exceeding the market
     price.


                                        8



6)   Stock Based Compensation

     The Company has three stock based compensation plans outstanding. The
     Directors 1994 Stock Option Plan was approved to provide for the grant of
     options to outside Directors of the Company. The Employees 1995 Stock
     Option Plan was approved to provide the grant of options to certain
     full-time employees of the Company. The Employees 1995 Stock Option Plan
     expired in April 2005 and has granted but unexpired options outstanding.
     The 2005 Stock Incentive Plan was approved by shareholders on April 27,
     2005 which provides awards to certain full-time employees of the Company.
     The 2005 Stock Incentive Plan permits the granting of options, share
     appreciation rights, restricted share, restricted share units, and
     unrestricted shares, deferred share units, and performance awards. Upon
     exercise of the stock options the shares are obtained from the authorized
     and unissued stock.

     The Company adopted SFAS No. 123 (Revised) Share-Based Payment, as of
     January 1, 2006 and, accordingly, has determined compensation cost based on
     the fair value of the option at the grant date. The Company adopted the
     modified prospective transition method in reporting financial statement
     results in the current and for future reporting periods. Under the modified
     prospective method, SFAS No. 123 (Revised) applies to new awards and to
     awards modified, repurchased, or cancelled after the effective date;
     accordingly the prior interim and annual periods do not reflect restated
     amounts. Additionally, the compensation cost for the portion of awards
     outstanding for which the requisite service has not been rendered that are
     outstanding as of the required effective date are recognized as the
     requisite service is rendered on or after the required effective date. For
     the three months ended March 31, 2006, the compensation cost for the stock
     option plans was $723,000, with a corresponding income tax benefit of
     $200,000, resulting in a net earnings and cash flow from operations
     reduction of $523,000, or a decrease of $.016 per share for both basic and
     diluted earnings per share. Additionally, in the cash flow statement, the
     excess tax benefit from stock options decreased the net cash provided from
     operating activities and increased the net cash provided by financing
     activities by $474,000 for the three months ended March 31, 2006. Total
     unrecognized compensation cost, net of income tax benefit, related to
     non-vested awards which are expected to be recognized over the next 1.4
     years was $2,750,000 as of March 31, 2006. The total fair value of shares
     vested during the three months ended March 31, 2006 and 2005 was $535,000
     and $537,000, respectively.

     Prior to the adoption of SFAS No. 123 (Revised), the Company utilized the
     intrinsic value method and compensation cost was the excess of the market
     price of the stock at the grant date over the amount an employee must pay
     to acquire the stock. The exercise price of all stock options granted has
     been equal to the fair market value of the underlying stock at the date of
     grant and, accordingly, the intrinsic value has been $0 and no compensation
     cost was recognized prior to the adoption of SFAS No. 123 (Revised). The
     Company did not modify any outstanding options prior to the adoption of the
     standard. If the Company had determined compensation cost based on fair
     value of the options at the grant date under SFAS 123 (Revised) prior to
     the date of adoption, the Company's net income would have been reduced to
     the pro forma amounts indicated below:



                                                   Three months
                                                 Ended March 31,
                                                       2005
                                                 ---------------
                                              
Net earnings (in thousands): As reported             $11,520
                             Compensation cost          (207)
                                                     -------
                             Pro forma                11,313
                                                     =======

Basic earnings per share:    As reported                0.37
                             Compensation cost            --
                                                     -------
                             Pro forma                  0.37
                                                     =======

Diluted earnings per share:  As reported                0.37
                             Compensation cost         (0.01)
                                                     -------
                             Pro forma                  0.36
                                                      ======



                                        9


     The per share weighted-average fair value of stock options granted during
     2006 and 2005 was $6.47 and $3.46, respectively, on the date of grant using
     the Black Scholes option-pricing model with the following assumptions: 2006
     - expected dividend yield 2.23%, risk-free interest rate of 4.35%,
     volatility ratio of 27%, and expected life of 3.3 years: 2005 - expected
     dividend yield 2.23%, risk-free interest rate of 3.44%, volatility ratio of
     18%, and expected life of 3.4 years. Expected volatilities are based on
     historical volatility and other factors. The Company uses historical data
     to estimate option exercise and termination with the valuation model.
     Employee and director awards, which have dissimilar historical exercise
     behavior, are considered separately for valuation purposes. The risk-free
     rate for periods within the contractual life of the option is based on the
     U.S. Treasury yield in effect at the time of the grant. The option awards
     generally vest upon six month or two years of service for directors and
     employees, respectively, and generally expire in five years.

     Change in shares granted for stock options for the three months ended March
     31, 2006 and the year ended December 31, 2005, are summarized as follows:



                                  Options outstanding    Options exercisable
                                 --------------------   --------------------
                                             Weighted               Weighted
                                              average                average
                                             exercise               exercise
                                   Shares      price      Shares      price
                                 ---------   --------   ---------   --------
                                                        
Balance, December 31, 2004 ...   1,510,631     14.65      703,015    11.61
Canceled .....................     (29,882)    21.05       (4,974)    9.77
Granted ......................     587,761     25.03
Became exercisable ...........                            525,759    16.31
Exercised ....................    (398,110)    12.95     (398,110)   12.95
                                 ---------              ---------
Balance, December 31, 2005 ...   1,670,400     18.58      825,690    14.25

Canceled .....................     (14,964)    23.20       (4,510)   12.93
Granted ......................     650,650     31.44
Became exercisable ...........                            375,346    20.06
Exercised ....................    (141,565)    15.44     (141,565)   15.44
                                 ---------              ---------
Balance, March 31, 2006 ......   2,164,521     22.62    1,054,961    16.16
                                 =========              =========


     The range of exercise prices on options outstanding and exercisable at
     March 31, 2006 is as follows:



                                             Weighted      Options exercisable
                                             average     ----------------------
                                Weighted    remaining                  Weighted
                                 average   contractual                  average
                    Options     exercise     life of       Options     exercise
  Price range     Outstanding     price      options     Exercisable     price
- ---------------   -----------   --------   -----------   -----------   --------
                                                        
 $5.19 - $6.99       103,430     $ 6.32     1.6 years       103,430     $ 6.32
$8.96 - $11.40        70,849       9.99     2.0 years        70,849       9.99
$12.17 - $13.20      123,589      12.68      .9 years       123,589      12.68
$14.09 - $17.45      268,445      14.28     1.9 years       268,445      14.28
$19.50 - $21.24      394,483      20.07     2.8 years       390,108      20.06
$24.99 - $28.34      557,335      25.05     3.9 years        98,540      25.01
    $31.44           646,390      31.44     4.8 years            --         --
                   ---------                              ---------
                   2,164,521      22.62     3.6 years     1,054,961      16.16
                   =========                              =========



                                       10



7)   Investments

     A comparison of the amortized cost and estimated fair value of the
     Company's investment securities, available-for-sale, is as follows:

                        INVESTMENTS AS OF MARCH 31, 2006



                                                                           Gross Unrealized   Estimated
                                                    Weighted   Amortized   ----------------      Fair
                                                      Yield       Cost      Gains    Losses     Value
                                                    --------   ---------   ------   -------   ---------
                                                                               
(Dollars in thousands)
U.S. GOVERNMENT AND FEDERAL AGENCIES:
   maturing within one year .....................     4.28%     $  2,234       --       (13)     2,221
   maturing within five years ...................     4.53%        2,977       --       (26)     2,951
   maturing five years through ten years ........     6.83%          364        4        (1)       367
   maturing after ten years .....................     5.51%          204        1        --        205
                                                                --------   ------   -------    -------
                                                      4.61%        5,779        5       (40)     5,744
                                                                --------   ------   -------    -------
STATE AND LOCAL GOVERNMENTS AND OTHER ISSUES:
   maturing within one year .....................     3.90%        2,391        3        (6)     2,388
   maturing one year through five years .........     4.54%        4,091       40       (92)     4,039
   maturing five years through ten years ........     4.94%       11,881      658       (17)    12,522
   maturing after ten years .....................     5.10%      283,126   11,904      (204)   294,826
                                                                --------   ------   -------    -------
                                                      5.07%      301,489   12,605      (319)   313,775
                                                                --------   ------   -------    -------

MORTGAGE-BACKED SECURITIES ......................     4.72%       61,915      225    (1,857)    60,283

REAL ESTATE MORTGAGE INVESTMENT CONDUITS ........     4.21%      492,427       52   (10,512)   481,967

FHLMC AND FNMA STOCK ............................     5.74%        7,593       58        --      7,651

FHLB AND FRB STOCK, AT COST .....................     0.93%       53,962       --        --     53,962
                                                                --------   ------   -------    -------
   TOTAL INVESTMENTS ............................     4.35%     $923,165   12,945   (12,728)   923,382
                                                                ========   ======   =======    =======



                                       11


                       INVESTMENTS AS OF DECEMBER 31, 2005



                                                                           Gross Unrealized   Estimated
                                                    Weighted   Amortized   ----------------      Fair
                                                      Yield       Cost      Gains    Losses     Value
                                                    --------   ---------   ------   -------   ---------
                                                                               
(Dollars in thousands)
U.S. GOVERNMENT AND FEDERAL AGENCIES:
   maturing within one year .....................     4.54%     $  1,236       --        (2)     1,234
   maturing one year through five years .........     4.32%        3,962       --       (39)     3,923
   maturing five years through ten years ........     6.55%          324        6        --        330
   maturing after ten years .....................     5.04%          337        2        --        339
                                                                --------   ------   -------    -------
                                                      4.53%        5,859        8       (41)     5,826
                                                                --------   ------   -------    -------
STATE AND LOCAL GOVERNMENTS AND OTHER ISSUES:
   maturing within one year .....................     4.16%          365        3        --        368
   maturing one year through five years .........     4.75%        6,858       48      (143)     6,763
   maturing five years through ten years ........     5.08%        8,728      365       (16)     9,077
   maturing after ten years .....................     5.10%      287,175   12,476      (225)   299,426
                                                                --------   ------   -------    -------
                                                      5.09%      303,126   12,892      (384)   315,634
                                                                --------   ------   -------    -------
MORTGAGE-BACKED SECURITIES ......................     4.67%       65,926      308    (1,599)    64,635
REAL ESTATE MORTGAGE INVESTMENT CONDUITS ........     4.22%      530,582      154    (9,653)   521,083
FHLMC AND FNMA STOCK ............................     5.74%        7,593       --      (330)     7,263
FHLB AND FRB STOCK, AT COST .....................     0.66%       53,529       --        --     53,529
                                                                --------   ------   -------    -------
      TOTAL INVESTMENTS .........................     4.34%     $966,615   13,362   (12,007)   967,970
                                                                ========   ======   =======    =======


     Interest income includes tax-exempt interest for the three months ended
     March 31, 2006 and 2005 of $3,489,000 and $3,467,000, respectively.

     Gross proceeds from sales of investment securities for the three months
     ended March 31, 2006 and 2005 were $0 and $98,929,000 respectively,
     resulting in gross gains of approximately $0 and $421,000 and gross losses
     of approximately $0 and $451,000, respectively. The cost of any investment
     sold is determined by specific identification.


                                       12



8)   Loans

     The following table summarizes the Company's loan portfolio:



                                                   At                     At                     At
                                                3/31/2006             12/31/2005              3/31/2005
                                          --------------------   --------------------   --------------------
TYPE OF LOAN                                Amount     Percent     Amount     Percent     Amount     Percent
                                          ----------   -------   ----------   -------   ----------   -------
                                                                                   
(Dollars in Thousands)
Real Estate Loans:
   Real estate                            $  617,486     24.4%   $  589,260     24.6%   $  417,906     22.2%
   Loans held for sale                        25,153      1.0%       22,540      0.9%       19,637      1.1%
                                          ----------    -----    ----------    -----    ----------    -----
      Total                                  642,639     25.4%      611,800     25.5%      437,543     23.3%
Commercial Loans:
   Real estate                               812,727     32.2%      781,181     32.6%      560,645     29.8%
   Other commercial                          626,615     24.8%      579,515     24.2%      530,588     28.2%
                                          ----------    -----    ----------    -----    ----------    -----
      Total                                1,439,342     57.0%    1,360,696     56.8%    1,091,233     58.0%
Consumer and other Loans:
   Consumer                                  194,806      7.7%      175,503      7.3%      129,200      6.9%
   Home equity                               298,564     11.8%      295,992     12.3%      258,797     13.8%
                                          ----------    -----    ----------    -----    ----------    -----
      Total                                  493,370     19.5%      471,495     19.6%      387,997     20.7%
   Net deferred loan fees, premiums
      and discounts                           (8,068)   -0.3%        (8,149)   -0.3%        (7,040)   -0.4%
   Allowance for loan losses                 (39,851)   -1.6%       (38,655)   -1.6%       (29,801)   -1.6%
                                          ----------    -----    ----------    -----    ----------    -----
Loan receivable, net                      $2,527,432    100.0%   $2,397,187    100.0%   $1,879,932    100.0%
                                          ==========    =====    ==========    =====    ==========    =====


     The following table sets forth information regarding the Company's
     non-performing assets at the dates indicated:



                                                     At          At           At
NONPERFORMING ASSETS                             3/31/2006   12/31/2005   3/31/2005
                                                 ---------   ----------   ---------
                                                                 
(Dollars in Thousands)
Non-accrual loans:
   Real estate loans                              $   595         726          25
   Commercial loans                                 3,474       4,045       5,679
   Consumer and other loans                           247         481         342
                                                  -------      ------       -----
      Total                                       $ 4,316       5,252       6,046
Accruing Loans 90 days or more overdue:
   Real estate loans                                1,516       1,659         110
   Commercial loans                                 3,195       2,199         792
   Consumer and other loans                           520         647         215
                                                  -------      ------       -----
      Total                                       $ 5,231       4,505       1,117
Real estate and other assets owned, net               778         332       2,003
                                                  -------      ------       -----
Total non-performing loans and real estate
   and other assets owned, net                    $10,325      10,089       9,166
                                                  =======      ======       =====
   As a percentage of total assets                   0.27%       0.26%       0.27%
Interest Income (1)                               $    78         359          97


(1)  This is the amount of interest that would have been recorded on loans
     accounted for on a non-accrual basis for the three months ended March 31,
     2006 and 2005 and the year ended December 31, 2005, if such loans had been
     current for the entire period.


                                       13


The following table illustrates the loan loss experience:

ALLOWANCE FOR LOAN LOSS



                                                 Three months ended    Year ended    Three months ended
                                                      March 31,       December 31,        March 31,
                                                        2006              2005              2005
                                                 ------------------   ------------   ------------------
                                                                            
(Dollars in Thousands)
Balance at beginning of period                        $38,655            26,492            26,492
   Charge offs:
      Real estate loans                                    (6)             (115)              (31)
      Commercial loans                                    (45)             (744)             (255)
      Consumer and other loans                           (102)             (539)             (115)
                                                      -------           -------           -------
         Total charge-offs                            $  (153)           (1,398)             (401)
                                                      -------           -------           -------
   Recoveries:
      Real estate loans                                    55                82                56
      Commercial loans                                     20               414                60
      Consumer and other loans                            109               415                72
                                                      -------           -------           -------
         Total recoveries                             $   184               911               188
                                                      -------           -------           -------
   Net recoveries (charge-offs)                            31              (487)             (213)
   Acquisition (1)                                         --             6,627             2,032
   Provision                                            1,165             6,023             1,490
                                                      -------           -------           -------
Balance at end of period                              $39,851            38,655            29,801
                                                      =======           =======           =======
Ratio of net recoveries (charge-offs) to
   average loans outstanding during the period          0.001%           -0.020%           -0.011%


(1)  Acquisition of First State Bank, First National Bank-West, Citizens
     Community Bank, and Bonner's Ferry branch

The following table summarizes the allocation of the allowance for loan losses:



                                  March 31, 2006        December 31, 2005       March 31, 2005
                               --------------------   --------------------   --------------------
                                            Percent                Percent                Percent
                                           of loans               of loans               of loans
                                              in                     in                     in
                               Allowance   category   Allowance   category   Allowance   category
                               ---------   --------   ---------   --------   ---------   --------
                                                                       
(Dollars in thousands)
Real estate loans               $ 4,518      24.9%       4,318      25.0%       2,987      22.8%
Commercial real estate loans     14,374      31.6%      14,370      32.0%       9,699      29.3%
Other commercial loans           13,254      24.3%      12,566      23.7%      11,513      27.7%
Consumer and other loans          7,705      19.2%       7,401      19.3%       5,602      20.2%
                                -------     -----       ------     -----       ------     -----
   Totals                       $39,851     100.0%      38,655     100.0%      29,801     100.0%
                                =======     =====       ======     =====       ======     =====



                                       14



9)   Intangible Assets

The following table sets forth information regarding the Company's core deposit
intangibles and mortgage servicing rights as of March 31, 2006:



                                               Core Deposit         Mortgage
                                                Intangible    Servicing Rights (1)   Total
                                               ------------   --------------------   -----
                                                                            
(Dollars in thousands)
   Gross carrying value                          $14,816
   Accumulated Amortization                       (7,222)
                                                 -------
   Net carrying value                            $ 7,594              1,125          8,719
                                                 =======
WEIGHTED-AVERAGE AMORTIZATION PERIOD
   (Period in years)                                10.0                9.5            9.9
AGGREGATE AMORTIZATION EXPENSE
   For the three months ended March 31, 2006     $   420                 46            466
ESTIMATED AMORTIZATION EXPENSE
   For the year ended December 31, 2006          $ 1,612                105          1,717
   For the year ended December 31, 2007            1,508                 77          1,585
   For the year ended December 31, 2008            1,413                 74          1,487
   For the year ended December 31, 2009            1,279                 72          1,351
   For the year ended December 31, 2010            1,069                 70          1,139


(1)  The mortgage servicing rights are included in other assets and the gross
     carrying value and accumulated amortization are not readily available.

10)  Deposits

The following table illustrates the amounts outstanding for deposits greater
than $100,000 at March 31, 2006, according to the time remaining to maturity.
Included in the three month CD maturities are brokered CD's in the amount of
$235,825,000.



                            Certificates   Non-Maturity
                             of Deposit      Deposits       Totals
                            ------------   ------------   ---------
                                                 
(Dollars in thousands)
Within three months .....     $331,637        908,349     1,239,986
Three to six months .....       63,217             --        63,217
Seven to twelve months ..       53,403             --        53,403
Over twelve months ......       36,034             --        36,034
                              --------        -------     ---------
   Totals ...............     $484,291        908,349     1,392,640
                              ========        =======     =========



                                       15


11)  Advances and Other Borrowings

     The following chart illustrates the average balances and the maximum
     outstanding month-end balances for Federal Home Loan Bank of Seattle (FHLB)
     advances and repurchase agreements:



                                                As of and         As of and         As of and
                                              for the three        for the        for the three
                                              months ended       year ended        months ended
                                             March 31, 2006   December 31, 2005   March 31, 2005
                                             --------------   -----------------   --------------
                                                                         
(Dollars in thousands)
FHLB Advances:
   Amount outstanding at end of period ...      $505,209           402,191           858,961
   Average balance .......................      $522,376           673,904           739,928
   Maximum outstanding at any month-end ..      $572,954           804,047           858,961
   Weighted average interest rate ........          3.72%             3.19%             2.87%
Repurchase Agreements:
   Amount outstanding at end of period ...      $132,207           129,530            79,148
   Average balance .......................      $133,020           103,522            80,970
   Maximum outstanding at any month-end ..      $135,661           132,534            79,148
   Weighted average interest rate ........          3.93%             2.85%             2.06%


12)  Stockholders' Equity

     The Federal Reserve Board has adopted capital adequacy guidelines that are
     used to assess the adequacy of capital in supervising a bank holding
     company. The following table illustrates the Federal Reserve Board's
     capital adequacy guidelines and the Company's compliance with those
     guidelines as of March 31, 2006.



                                                Tier 1 (Core)   Tier 2 (Total)    Leverage
CONSOLIDATED                                       Capital          Capital        Capital
- ------------                                    -------------   --------------   ----------
                                                                        
(Dollars in thousands)
GAAP Capital ................................    $  344,391         344,391         344,391
Less: Goodwill and intangibles ..............       (86,693)        (86,693)        (86,693)
   Accumulated other comprehensive
      Unrealized gain on AFS securities .....          (132)           (132)           (132)
   Other adjustments ........................            --             (18)             --
Plus: Allowance for loan losses .............            --          35,413              --
   Subordinated debentures ..................        85,000          85,000          85,000
                                                 ----------       ---------      ----------
Regulatory capital computed .................    $  342,566         377,961         342,566
                                                 ==========       =========      ==========
Risk weighted assets ........................    $2,833,006       2,833,006
                                                 ==========       =========
Total average assets ........................                                    $3,683,638
                                                                                 ==========
Capital as % of defined assets ..............         12.09%          13.34%           9.30%
Regulatory "well capitalized" requirement ...          6.00%          10.00%           5.00%
                                                 ----------       ---------      ----------
Excess over "well capitalized" requirement ..          6.09%           3.34%           4.30%
                                                 ==========       =========      ==========



                                       16



13)  Other Comprehensive Income

     The Company's only component of other comprehensive income is the
     unrealized gains and losses on available-for-sale securities.



                                                       For the three months
                                                          ended March 31,
                                                       --------------------
                                                           2006     2005
                                                         -------   ------
                                                             
Dollars in thousands
Net earnings .......................................     $13,629   11,520
Unrealized holding loss arising during the period ..      (1,137)  (9,530)
Tax benefit ........................................         448    3,755
                                                         -------   ------
      Net after tax ................................        (689)  (5,775)
Reclassification adjustment for losses
   included in net earnings ........................          --       30
Tax benefit ........................................          --      (12)
                                                         -------   ------
      Net after tax ................................          --       18
      Net unrealized loss on securities ............        (689)  (5,757)
                                                         -------   ------
         Total other comprehensive income ..........     $12,940    5,763
                                                         =======   ======


14)  Segment Information

     The Company evaluates segment performance internally based on individual
     bank charters, and thus the operating segments are so defined. The
     following schedule provides selected financial data for the Company's
     operating segments. Centrally provided services to the Banks are allocated
     based on estimated usage of those services. The operating segment
     identified as "Other" includes the Parent, non-bank units, and eliminations
     of transactions between segments.



                                            Three months ended and as of March 31, 2006
                                   -------------------------------------------------------------
                                              Mountain     First               First
                                    Glacier     West     Security   Western   National   Big Sky
                                   --------   --------   --------   -------   --------   -------
                                                                       
(Dollars in thousands)
Revenues from external customers   $ 12,452    15,924     12,258      6,880     4,102      4,918
Intersegment revenues                    52         6         78         17       236         --
Expenses                             (9,284)  (13,063)    (9,167)    (5,404)   (3,526)    (3,719)
Intercompany eliminations                --        --         --         --        --         --
                                   --------   -------    -------    -------   -------    -------
   Net Earnings                    $  3,220     2,867      3,169      1,493       812      1,199
                                   ========   =======    =======    =======   =======    =======
   Total Assets                    $697,266   809,759    734,092    428,263   284,398    275,158
                                   ========   =======    =======    =======   =======    =======




                                                                                  Total
                                    Valley   Whitefish   Citizens    Other    Consolidated
                                   -------   ---------   --------   -------   ------------
                                                               
Revenues from external customers     4,344      2,996      3,159         75       67,108
Intersegment revenues                   33         --         --     17,374       17,796
Expenses                            (3,371)    (2,306)    (2,611)    (1,028)     (53,479)
Intercompany eliminations               --         --         --    (17,796)     (17,796)
                                   -------    -------    -------    -------    ---------
   Net Earnings                      1,006        690        548     (1,375)      13,629
                                   =======    =======    =======    =======    =========
   Total Assets                    258,165    175,912    153,204    (16,059)   3,800,158
                                   =======    =======    =======    =======    =========



                                       17




                                       Three months ended and as of March 31, 2005
                                   --------------------------------------------------
                                             Mountain     First                First
                                    Glacier    West     Security   Western   National
                                   --------  --------   --------   -------   --------
                                                              
(Dollars in thousands)
Revenues from external customers   $ 10,335   12,168      9,075      6,371     1,144
Intersegment revenues                   145       --          5         --        --
Expenses                             (7,741)  (9,572)    (6,413)    (4,871)     (883)
Intercompany eliminations                --       --         --         --        --
                                   --------  -------    -------    -------   -------
   Net Earnings                    $  2,739    2,596      2,667      1,500       261
                                   ========  =======    =======    =======   =======
   Total Assets                    $685,498  659,006    617,048    443,633   272,335
                                   ========  =======    =======    =======   =======




                                                                                 Total
                                   Big Sky    Valley   Whitefish    Other    Consolidated
                                   -------   -------   ---------   -------   ------------
                                                              
Revenues from external customers     4,089     3,779      2,953       (299)      49,615
Intersegment revenues                   --        34         --     14,842       15,026
Expenses                            (3,004)   (2,844)    (1,999)      (768)     (38,095)
Intercompany eliminations               --        --         --    (15,026)     (15,026)
                                   -------   -------    -------    -------    ---------
   Net Earnings                      1,085       969        954     (1,251)      11,520
                                   =======   =======    =======    =======    =========
   Total Assets                    257,217   241,496    162,727    (32,520)   3,306,440
                                   =======   =======    =======    =======    =========


15)  Rate/Volume Analysis

     Net interest income can be evaluated from the perspective of relative
     dollars of change in each period. Interest income and interest expense,
     which are the components of net interest income, are shown in the following
     table on the basis of the amount of any increases (or decreases)
     attributable to changes in the dollar levels of the Company's
     interest-earning assets and interest-bearing liabilities ("Volume") and the
     yields earned and rates paid on such assets and liabilities ("Rate"). The
     change in interest income and interest expense attributable to changes in
     both volume and rates has been allocated proportionately to the change due
     to volume and the change due to rate.



                                  Three Months Ended March 31,
                                          2006 vs. 2005
                                   Increase (Decrease) due to:
                                  ----------------------------
                                     Volume    Rate     Net
                                    -------   -----   ------
                                             
(Dollars in Thousands)
INTEREST INCOME
Real estate loans                   $ 3,358   1,016    4,374
Commercial loans                      5,842   3,159    9,001
Consumer and other loans              1,942   1,193    3,135
Investment securities and other      (1,457)    392   (1,065)
                                    -------   -----   ------
   Total Interest Income              9,685   5,760   15,445
INTEREST EXPENSE
NOW accounts                             34     287      321
Savings accounts                         58     365      423
Money market accounts                   191   1,341    1,532
Certificates of deposit               2,224   2,722    4,946
FHLB advances                        (1,541)  1,094     (447)
Other borrowings and
   repurchase agreements                111     707      818
                                    -------   -----   ------
   Total Interest Expense             1,077   6,516    7,593
                                    -------   -----   ------
NET INTEREST INCOME                 $ 8,608    (756)   7,852
                                    =======   =====   ======



                                       18



16) Average Balance Sheet

     The following schedule provides (i) the total dollar amount of interest and
     dividend income of the Company for earning assets and the resultant average
     yield; (ii) the total dollar amount of interest expense on interest-bearing
     liabilities and the resultant average rate; (iii) net interest and dividend
     income; (iv) interest rate spread; and (v) net interest margin. Non-accrual
     loans are included in the average balance of the loans.



                                            For the Three months ended 3-31-06
                                            ----------------------------------
                                                           Interest   Average
                                               Average       and       Yield/
                                               Balance    Dividends     Rate
                                             ----------   ---------   -------
                                                             
AVERAGE BALANCE SHEET
(Dollars in Thousands)
ASSETS
   Residential Real Estate Loans             $  618,852     10,989      7.10%
   Commercial Loans                           1,397,090     25,525      7.41%
   Consumer and Other Loans                     481,298      8,865      7.47%
                                             ----------    -------
      Total Loans                             2,497,240     45,379      7.37%
   Tax -Exempt Investment Securities (1)        283,715      3,489      4.92%
   Other Investment Securities                  686,956      7,084      4.12%
                                             ----------    -------
      Total Earning Assets                    3,467,911     55,952      6.45%
                                                           -------
   Goodwill and Core Deposit Intangible          87,616
   Other Non-Earning Assets                     185,313
                                             ----------
      TOTAL ASSETS                           $3,740,840
                                             ==========
LIABILITIES
AND STOCKHOLDERS' EQUITY
   NOW Accounts                              $  346,930        470      0.55%
   Savings Accounts                             245,928        578      0.95%
   Money Market Accounts                        495,032      2,843      2.33%
   Certificates of Deposit                      829,390      7,400      3.62%
   FHLB Advances                                522,376      4,796      3.72%
   Repurchase Agreements
      and Other Borrowed Funds                  294,376      3,557      4.90%
                                             ----------    -------
      Total Interest Bearing Liabilities      2,734,032     19,644      2.91%
                                                           -------
   Non-interest Bearing Deposits                630,490
   Other Liabilities                             35,235
                                             ----------
      Total Liabilities                       3,399,757
                                             ----------
   Common Stock                                     323
   Paid-In Capital                              263,541
   Retained Earnings                             75,539
   Accumulated Other
      Comprehensive Income                        1,680
                                             ----------
      Total Stockholders' Equity                341,083
                                             ----------
      TOTAL LIABILITIES AND
         STOCKHOLDERS' EQUITY                $3,740,840
                                             ==========

   Net Interest Income                                     $36,308
                                                           =======
   Net Interest Spread                                                  3.54%
   Net Interest Margin
      on Average Earning assets                                         4.25%
   Return on Average Assets (annualized)                                1.48%
   Return on Average Equity (annualized)                               16.21%


(1)  Excludes tax effect on non-taxable investment security income


                                       19


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

Impact of Recently Issued Accounting Standards

The Company adopted SFAS No. 123 (Revised) Share-Based Payment, as of January 1,
2006 and, accordingly, has determined compensation cost based on the fair value
of the option at the grant date. As a result of the adoption of the standard,
net earnings were reduced by $523,488, or $.016 per share, for the quarter ended
March 31, 2006. For additional information regarding the standard see Note 6 to
the Consolidated Financial Statements.

Acquisition announced

On April 20, 2006, the signing of a definitive agreement whereby Citizens
Development Company a Billings, Montana based five bank holding company with
total assets of $430 million will merge into Glacier Bancorp, Inc. was
announced. The closing of the transaction is expected to occur in July or August
of 2006. The five banks being acquired will remain as independently chartered
banks pending their anticipated consolidation with existing Glacier Bancorp,
Inc. Montana subsidiaries.

Financial Condition

This section discusses the changes in the Statement of Financial Condition items
from March 31, 2005 and December 31, 2005, to March 31, 2006.



                                                          March 31,    December 31,    March 31,     $ change from   $ change from
                                                             2006          2005           2005        December 31,     March 31,
                                                         (unaudited)     (audited)    (unaudited)        2005             2005
                                                         -----------   ------------   -----------   --------------   -------------
                                                                                                      
ASSETS ($ IN THOUSANDS)
Cash on hand and in banks                                $  105,474       111,418         82,600        (5,944)          22,874
Investment securities, interest bearing deposits,
   FHLB stock, FRB stock, and fed funds                     953,880       991,246      1,171,112       (37,366)        (217,232)
Loans:
   Real estate                                              638,529       607,627        433,901        30,902          204,628
   Commercial                                             1,435,731     1,357,051      1,087,989        78,680          347,742
   Consumer and other                                       493,023       471,164        387,843        21,859          105,180
                                                         ----------     ---------      ---------       -------         --------
      Total loans                                         2,567,283     2,435,842      1,909,733       131,441          657,550
   Allowance for loan losses                                (39,851)      (38,655)       (29,801)       (1,196)         (10,050)
                                                         ----------     ---------      ---------       -------         --------
      Total loans net of allowance for loan losses        2,527,432     2,397,187      1,879,932       130,245          647,500
                                                         ----------     ---------      ---------       -------         --------
Other assets                                                213,372       206,493        172,796         6,879           40,576
                                                         ----------     ---------      ---------       -------         --------
   Total Assets                                          $3,800,158     3,706,344      3,306,440        93,814          493,718
                                                         ==========     =========      =========       =======         ========


At March 31, 2006 total assets were $3.800 billion, which is $94 million, or 3
percent, greater than the December 31, 2005 assets of $3.706 billion, and $494
million, or 15 percent, greater than the March 31, 2005 assets of $3.306
billion.

Total loans have increased $131 million from December 31, 2005, or 5 percent,
with the growth occurring in all loan categories. Commercial loans have
increased $79 million, or 6 percent, real estate loans gained $31 million, or 5
percent, and consumer loans grew by $22 million, or 5 percent. Total loans have
increased $658 million, or 34 percent, from March 31, 2005, with all loan
categories showing increases. Commercial loans grew the most with an increase of
$348 million, or 32 percent, followed by real estate loans which increased $205
million, or 47 percent, which was the largest percentage gain, and consumer
loans, which are primarily comprised of home equity loans, increasing by $105
million, or 27 percent.

Investment securities, including interest bearing deposits in other financial
institutions, and federal funds sold have decreased $37 million from December
31, 2005, or 4 percent, and have declined $217 million, or 19 percent, from
March 31, 2005. Investment securities at March 31, 2006 represented 25% of total
assets versus 35% the prior year.


                                       20



The Company typically sells a majority of long-term mortgage loans originated,
retaining servicing only on loans sold to certain lenders. The sale of loans in
the secondary mortgage market reduces the Company's risk of holding long-term,
fixed rate loans in the loan portfolio. Mortgage loans sold for the three months
ended March 31, 2006 and 2005 were $90 million and $59 million, respectively.
The Company has also been active in generating commercial SBA loans. A portion
of some of those loans is sold to other investors. The amount of loans sold and
serviced for others at March 31, 2006 was approximately $166 million.



                                              March 31,    December 31,    March 31,     $ change from   $ change from
                                                 2006          2005           2005        December 31,     March 31,
                                             (unaudited)     (audited)    (unaudited)        2005             2005
                                             -----------   ------------   -----------   --------------   -------------
                                                                                          
LIABILITIES ($ IN THOUSANDS)
Non-interest bearing deposits                 $  683,201       667,008       528,038         16,193         155,163
Interest bearing deposits                      2,010,198     1,867,704     1,448,643        142,494         561,555
Advances from Federal Home Loan Bank             505,209       402,191       858,961        103,018        (353,752)
Securities sold under agreements to
   repurchase and other borrowed funds           134,981       317,222        84,982       (182,241)         49,999
Other liabilities                                 37,178        33,980        32,367          3,198           4,811
Subordinated debentures                           85,000        85,000        80,000             --           5,000
                                              ----------     ---------     ---------       --------        --------
      Total liabilities                       $3,455,767     3,373,105     3,032,991         82,662         422,776
                                              ==========     =========     =========       ========        ========


Non-interest bearing deposits have increased $16 million, or 10 percent
annualized, since December 31, 2005, and by $155 million, or 29 percent, since
March 31, 2005. This continues to be a primary focus of each of our banks.
Interest bearing deposits have increased $142 million from December 31, 2005, of
which $71 million was in broker originated certificates of deposit, and $53
million in Internet generated National Market CD's. Since March 31, 2005
interest bearing deposits increased $562 million, or 39 percent, with $289
million of that amount from broker and Internet sources. Federal Home Loan Bank
(FHLB) advances increased $103 million, and repurchase agreements and other
borrowed funds decreased $182 million from December 31, 2005, primarily from the
redemption of $179 million in U. S. Treasury Tax and Loan Term Auction funds.
FHLB advances are $354 million less than the March 31, 2005 balances due
primarily to the above described increases in deposits.

Liquidity and Capital Resources

The objective of liquidity management is to maintain cash flows adequate to meet
current and future needs for credit demand, deposit withdrawals, maturing
liabilities and corporate operating expenses. The principal source of the
Company's cash revenues is the dividends received from the Company's banking
subsidiaries. The payment of dividends is subject to government regulation, in
that regulatory authorities may prohibit banks and bank holding companies from
paying dividends which would constitute an unsafe or unsound banking practice.
The subsidiaries source of funds is generated by deposits, principal and
interest payments on loans, sale of loans and securities, short and long-term
borrowings, and net earnings. In addition, eight of the nine banking
subsidiaries are members of the FHLB. As of March 31, 2006, the Company had $883
million of available FHLB line of which $505 million was utilized. Accordingly,
management of the Company has a wide range of versatility in managing the
liquidity and asset/liability mix for each individual institution as well as the
Company as a whole.

Lending Commitments

In the normal course of business, there are various outstanding commitments to
extend credit, such as letters of credit and un-advanced loan commitments, which
are not reflected in the accompanying condensed consolidated financial
statements. Management does not anticipate any material losses as a result of
these transactions.


                                       21




                                                          March 31,    December 31,    March 31,    $ change from   $ change from
                                                             2006          2005           2005       December 31,     March 31,
STOCKHOLDERS' EQUITY (UNAUDITED)                         (unaudited)     (audited)    (unaudited)        2005            2005
                                                         -----------   ------------   -----------   -------------   -------------
                                                                                                     
($ IN THOUSANDS EXCEPT PER SHARE DATA)

Common equity                                             $344,259       332,418        273,272        11,841           70,987
Accumulated other comprehensive income                         132           821            177          (689)             (45)
                                                          --------       -------        -------        ------          -------
   Total stockholders' equity                              344,391       333,239        273,449        11,152           70,942
Core deposit intangible, net, and goodwill                 (86,693)      (87,114)       (67,291)          421          (19,402)
                                                          --------       -------        -------        ------          -------
                                                          $257,698       246,125        206,158        11,573           51,540
                                                          ========       =======        =======        ======          =======
Stockholders' equity to total assets                          9.06%         8.99%          8.27%
Tangible stockholders' equity to total tangible assets        6.94%         6.80%          6.36%
Book value per common share                               $  10.66         10.36           8.86          0.30             1.80
Market price per share at end of quarter                  $  31.05         30.05          24.40          1.00             6.65


Total equity and book value per share amounts have increased $11.152 million and
$.30 per share, respectively, from December 31, 2005, the result of earnings
retention, and stock options exercised. Accumulated other comprehensive income,
representing net unrealized gains on securities available for sale, decreased
$689 thousand during the quarter, primarily a function of interest rate changes
and the decreased balance of securities.



                                                          March 31,    December 31,    March 31,
                                                             2006          2005           2005
CREDIT QUALITY INFORMATION ($ IN THOUSANDS)              (unaudited)     (audited)    (unaudited)
- -------------------------------------------              -----------   ------------   -----------
                                                                             
Allowance for loan losses                                  $39,851       $38,655       $29,801
Non-performing assets                                      $10,325        10,089         9,166
Allowance as a percentage of non performing assets             386%          383%          325%
Non-performing assets as a percentage of total assets         0.27%         0.26%         0.27%
Allowance as a percentage of total loans                      1.55%         1.59%         1.56%
Net recoveries (charge-offs) as a percentage of loans        0.001%       (0.020%)      (0.011%)


Allowance for Loan Loss and Non-Performing Assets

Non-performing assets as a percentage of total assets at March 31, 2006 were at
..27 percent, the same percentage as at March 31, 2005, but increasing slightly
from .26 percent at December 31, 2005. The Company ratios compare favorably to
the Federal Reserve Bank Peer Group average of .43 percent at December 31, 2005,
the most recent information available. The allowance for loan losses was 386
percent of non-performing assets at March 31, 2006, up from 325 percent a year
ago. The allowance, including $4.579 million from acquisitions, has increased
$10.050 million, or 34 percent, from a year ago. The allowance of $39.851
million, is 1.55 percent of March 31, 2006 total loans outstanding, down
slightly from the 1.56 percent a year ago. The first quarter provision for loan
losses expense was $1.165 million, a decrease of $325 thousand from the same
quarter in 2005, and was also a decrease of $209 thousand from the fourth
quarter of 2005. Recovery of previously charged-off loans exceeded amounts
charged-off during the quarter by $31,000. Loan growth, average loan size, and
credit quality considerations will determine the level of additional provision
expense.


                                       22



  RESULTS OF OPERATIONS - THE THREE MONTHS ENDED MARCH 31, 2006 COMPARED TO THE
                       THREE MONTHS ENDED MARCH 31, 2005.

The Company reported net quarterly earnings of $13.629 million, an increase of
$2.1 million, or 18 percent, over the $11.520 million for the first quarter of
2005. Diluted earnings per share for the quarter of $.42 is an increase of 14
percent over the per share earnings of $.37 for the same quarter of 2005. Net
earnings were reduced by $523,488, or $.016 per share, due to the January 1,
2006 adoption of SFAS 123(R) Share-based Payment which requires recording the
estimated fair value of stock options as compensation expense. Annualized return
on average assets and return on average equity for the quarter were 1.48 percent
and 16.21 percent, respectively, which compares with prior year returns for the
first quarter of 1.50 percent and 17.06 percent. Annualized return on average
tangible equity, a non-GAAP performance measure, for the first quarter of 2006
was 22.48 percent compared to 20.99 percent in the first quarter of last year.



                                                      Three months ended March 31,
                                                ----------------------------------------
REVENUE SUMMARY                                   2006      2005    $ change    % change
                                                -------   -------   ---------   --------
                                                                    
(UNAUDITED - $ IN THOUSANDS)
Net interest income                             $36,308   $28,456    $7,852        28%
Non-interest income
   Service charges, loan fees, and other fees     8,217     6,482     1,735        27%
   Gain on sale of loans                          2,190     2,092        98         5%
   Other income                                     749       534       215        40%
                                                -------   -------    ------       ---
      Total non-interest income                  11,156     9,108     2,048        22%
                                                -------   -------    ------       ---
                                                $47,464   $37,564    $9,900        26%
                                                =======   =======    ======       ===
Tax equivalent net interest margin                 4.32%     4.08%
                                                =======   =======


Net Interest Income

Net interest income for the quarter increased $7.852 million, or 28 percent,
over the same period in 2005, and $604 thousand from the fourth quarter of 2005.
Total interest income increased $15.445 million from the prior year's quarter,
or 38 percent, while total interest expense was $7.593 million, or 63 percent
higher. The increase in interest expense is primarily attributable to the volume
increase in interest bearing liabilities, and increases in short term interest
rates during 2005 continuing into 2006. The Federal Reserve Bank has increased
the targeted fed funds rate 10 times, 250 basis points, since January 1, 2005.
The net interest margin as a percentage of earning assets, on a tax equivalent
basis, was 4.32 percent which was higher than the 4.08 percent result for the
first quarter of 2005. The margin for the first quarter of 2006 continued the
trend of increases experienced in each quarter of 2005.

Non-interest Income

Fee income increased $1.735 million, or 27 percent, over the same period last
year, driven primarily by an increased number of loan and deposit accounts from
internal growth and acquisitions. Gain on sale of loans increased $98 thousand,
or 5 percent, from the first quarter of last year. Loan origination activity for
housing construction and purchases remains strong in our markets.


                                       23





                                                   Three months ended March 31,
                                             ---------------------------------------
NON-INTEREST EXPENSE SUMMARY                   2006      2005    $ change   % change
                                             -------   -------   --------   --------
                                                                
(UNAUDITED - $ IN THOUSANDS)
Compensation and employee benefits           $15,311   $10,944    $4,367       40%
Occupancy and equipment expense                3,491     2,855       636       22%
Outsourced data processing                       724       232       492      212%
Core deposit intangibles amortization            420       283       137       48%
Other expenses                                 5,881     4,760     1,121       24%
                                             -------   -------    ------      ---
   Total non-interest expense                $25,827   $19,074    $6,753       35%
                                             =======   =======    ======      ===


Non-interest Expense

Non-interest expense increased by $6.753 million, or 35 percent, from the same
quarter of 2005. Compensation and benefit expense increased $4.367 million, or
40 percent, of which $723 thousand was from expensing stock options with the
adoption of SFAS 123(R) in 2006, four acquisitions during 2005, the addition of
four new bank branches occurring within the last four months, normal
compensation increases for job performance and increased cost for benefits are
the reasons for the majority of the increase. The number of full-time-equivalent
employees has increased from 952 to 1,147, a 20 percent increase, since March
31, 2005. Occupancy and equipment expense increased $636 thousand, or 22
percent, reflecting the bank acquisitions, cost of additional branch locations
and facility upgrades. Other expenses increased $1.121 million, or 24 percent,
primarily from acquisitions, additional marketing expenses, and costs associated
with new branch offices. The number of new branches coming on-line within a
short period of time has resulted in significantly higher expenses in the
current quarter. The number of new locations is greater than normal for our
company, rapid expansion in the high growth markets of Boise and Coeur d'Alene
are expected to have long-term benefits. The efficiency ratio (non-interest
expense/net interest income + non-interest income) was 54 percent for the 2006
quarter, up from 51 percent for the 2005 quarter.

Critical Accounting Policies

Companies apply certain critical accounting policies requiring management to
make subjective or complex judgments, often as a result of the need to estimate
the effect of matters that are inherently uncertain. The Company considers its
only critical accounting policy to be the allowance for loan losses. The
allowance for loan losses is established through a provision for loan losses
charged against earnings. The balance of allowance for loan loss is maintained
at the amount management believes will be adequate to absorb known and inherent
losses in the loan portfolio. The appropriate balance of allowance for loan
losses is determined by applying estimated loss factors to the credit exposure
from outstanding loans. Estimated loss factors are based on subjective
measurements including management's assessment of the internal risk
classifications, changes in the nature of the loan portfolio, industry
concentrations and the impact of current local, regional and national economic
factors on the quality of the loan portfolio. Changes in these estimates and
assumptions are reasonably possible and may have a material impact on the
Company's consolidated financial statements, results of operations and
liquidity.

Effect of inflation and changing prices

Generally accepted accounting principles require the measurement of financial
position and operating results in terms of historical dollars, without
consideration for change in relative purchasing power over time due to
inflation. Virtually all assets of a financial institution are monetary in
nature; therefore, interest rates generally have a more significant impact on a
company's performance than does the effect of inflation.

Forward Looking Statements

This Form 10-Q includes forward looking statements, which describe management's
expectations regarding future events and developments such as future operating
results, growth in loans and deposits, continued success of the Company's style
of banking and the strength of the local economies in which it operates. Future


                                       24


events are difficult to predict, and the expectations described above are
necessarily subject to risk and uncertainty that may cause actual results to
differ materially and adversely. In addition to discussions about risks and
uncertainties set forth from time to time in the Company's public filings,
factors that may cause actual results to differ materially from those
contemplated by such forward looking statements include, among others, the
following possibilities: (1) local, national and international economic
conditions are less favorable than expected or have a more direct and pronounced
effect on the Company than expected and adversely affect the company's ability
to continue its internal growth at historical rates and maintain the quality of
its earning assets; (2) changes in interest rates reduce interest margins more
than expected and negatively affect funding sources; (3) projected business
increases following strategic expansion or opening or acquiring new banks and/or
branches are lower than expected; (4) costs or difficulties related to the
integration of acquisitions are greater than expected; (5) competitive pressure
among financial institutions increases significantly; (6) legislation or
regulatory requirements or changes adversely affect the businesses in which the
Company is engaged.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

The Company believes that there have not been any material changes in
information about the Company's market risk than was provided in the Form 10-K
report for the year ended December 31, 2005.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

The Company's Chief Executive Officer and Chief Financial Officer have reviewed
and evaluated the effectiveness of our disclosure controls and procedures (as
required by Exchange Act Rules 240.13a-15(b) and 15d-14(c)) as of the date of
this quarterly report. Based on that evaluation, the Chief Executive Officer and
Chief Financial Officer have concluded that the Company's current disclosure
controls and procedures are effective and timely, providing them with material
information relating to the Company required to be disclosed in the reports we
file or submit under the Exchange Act.

Changes in Internal Controls

There have not been any changes in the Company's internal control over financial
reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the
Exchange Act) during the first quarter 2006, to which this report relates that
have materially affected, or are reasonably likely to materially affect the
Company's internal controls over financial reporting.

PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

     There are no pending material legal proceedings to which the registrant or
its subsidiaries are a party.

ITEM 1A. RISK FACTORS

     There have not been any material changes to the Company's risk factors
during the first quarter 2006.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

     (a)  Not Applicable

     (b)  Not Applicable

     (c)  Not Applicable


                                       25



ITEM 3. DEFAULTS UPON SENIOR SECURITIES

     (a)  Not Applicable

     (b)  Not Applicable

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITIES HOLDERS

     (a)  None

     (b)  Not Applicable

     (c)  None

     (d)  None

ITEM 5. OTHER INFORMATION

     (a)  Not Applicable

     (b)  Not Applicable

ITEM 6. EXHIBITS

Exhibit 31.1 - Certification of Chief Executive Officer pursuant to Section 302
               of the Sarbanes - Oxley Act of 2002

Exhibit 31.2 - Certification of Chief Financial Officer pursuant to Section 302
               of the Sarbanes - Oxley Act of 2002

Exhibit 32   - Certification of Chief Executive Officer and Chief Financial
               Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant
               to Section 906 of the Sarbanes - Oxley Act of 2002


                                       26



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.

                                        GLACIER BANCORP, INC.


May 8, 2006                             /s/ Michael J. Blodnick
                                        ----------------------------------------
                                        Michael J. Blodnick
                                        President/CEO


May 8, 2006                             /s/ James H. Strosahl
                                        ----------------------------------------
                                        James H. Strosahl
                                        Executive Vice President/CFO


                                       27