<SUBMISSION>
<ACCESSION-NUMBER>0001275287-06-005013
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20061001
<ITEMS>8.01
<ITEMS>9.01
<FILING-DATE>20061002
<DATE-OF-FILING-DATE-CHANGE>20061002
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>GLACIER BANCORP INC
<CIK>0000868671
<ASSIGNED-SIC>6022
<IRS-NUMBER>810519541
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-18911
<FILM-NUMBER>061119379
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>49 COMMONS LOOP
<STREET2>.
<CITY>KALISPELL
<STATE>MT
<ZIP>59901
<PHONE>4067564200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>49 COMMONS LOOP
<STREET2>.
<CITY>KALISPELL
<STATE>MT
<ZIP>59901
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>gb7370.htm
<DESCRIPTION>FORM 8-K
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<p  align="center"><font size="5" face="Times New Roman"><b>UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION<br> </b></font>
<font size="3"><b>Washington, D.C.&#160;&#160; 20549</b></font></p>
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<font size="5" face="Times New Roman"><b>Form 8-K</b></font></p>
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<font size="3" face="Times New Roman"><b>CURRENT REPORT</b></font></p>
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<font size="3" face="Times New Roman"><b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</b></Font><br> <font size="2" face="Times New Roman"><b>Date of Report (Date of earliest event reported)<br>&#160;October 1, 2006</b></font></p>
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<font size="6" face="Times New Roman"><b>GLACIER   BANCORP, INC.</b></font></p>  </td>
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<font size="2" face="Times New Roman"><i>(Exact name of registrant as specified in its   charter)</i></font></p>  </td>
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  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
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  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
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<font size="2" face="Times New Roman"><b>Montana</b></font></p>  </td>
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<font size="2" face="Times New Roman"><i>(State or other jurisdiction of incorporation)</i></font></p>  </td>
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<font size="2" face="Times New Roman"><b>000-18911</b></font></p>  </td>
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  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
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<font size="2" face="Times New Roman"><b>81-0519541</b></font></p>  </td>
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  <p  align="center"><font size="2" face="Times New Roman"><i>(Commission File Number)</i></font></p>  </td>
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<font size="2" face="Times New Roman"><i>(IRS Employer Identification No.)</i></font></p>  </td>
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  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
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  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
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<font size="2" face="Times New Roman"><b>49 Commons Loop<br>   Kalispell, Montana 59901</b></font></p>  </td>
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<font size="2" face="Times New Roman"><i>(Address of principal executive offices)&#160; (zip code)</i></font></p>  </td>
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<font size="2" face="Times New Roman"><b>Registrant&#146;s telephone number,   including area code: (406) 756-4200</b></font></p>  </td>
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<font size="2" face="Times New Roman">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions (see General Instruction A.2 below):</font></p>
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<font size="2" face="Wingdings">o</font></p>  </td>
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<font size="2" face="Times New Roman">Written communications pursuant to Rule 425 under   the Securities Act (17 CFR 230.425)</font></p>  </td>
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<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="2" face="Wingdings">o</font></p>  </td>
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<font size="2" face="Times New Roman">Soliciting material pursuant to Rule 14a-12 under   the Exchange Act (17 CFR 240.14a-12)</font></p>  </td>
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<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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<font size="2" face="Wingdings">o</font></p>  </td>
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<font size="2" face="Times New Roman">Pre-commencement communications pursuant to Rule   14d-2(b) under the Exchange Act of&#160;   (17 CFR 240.14d-2(b))</font></p>  </td>
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<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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<font size="2" face="Wingdings">o</font></p>  </td>
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<font size="2" face="Times New Roman">Pre-commencement communications pursuant to Rule   13e-4(c) under the Exchange Act of&#160;   (17 CFR 240.13e-4(c))</font></p>  </td>
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<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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<p>
<font size="2" face="Times New Roman"><b>Item 8.01 Other Events</b></font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October 1, 2006, Glacier Bancorp, Inc. (NASDAQ &#147;GBCI&#148;) announced the completion of the acquisition of Citizens Development Company (&#147;Citizens&#148;) for a total purchase price of $78,627,000.&#160; As a result of the merger, the bank subsidiaries of Citizens (Citizens State Bank, Hamilton, Montana; First Citizens Bank of Billings, Billings, Montana; First National Bank of Lewiston, Lewiston, Montana; Western Bank of Chinook, N.A., Chinook, Montana; and First Citizens Bank, N.A., Columbia Falls, Montana) became wholly owned bank subsidiaries of GBCI.&#160; As a condition to closing imposed by the bank regulators, GBCI has entered into a definitive agreement with Bank of the Rockies to divest the Lewistown branch of its subsidiary, Western Security Bank.</font></p>

<p><font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A copy of the press release is attached as Exhibit 99 and is incorporated herein in its entirety by reference.</font></p>
<p>
<font size="2" face="Times New Roman"><b>Item 9.01 Financial Statements and Exhibits</b></font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exhibits</font></p>
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<font size="2" face="Times New Roman">(99)</font></p>  </td>
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<font size="2" face="Times New Roman">Press Release dated October 1, 2006 issued by   Glacier&#160; Bancorp, Inc. announcing the   completion of the acquisition of&#160;   Citizens Development Company.</font></p>  </td>
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<font size="2" face="Times New Roman"><b>SIGNATURES</b></font></p>
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<font size="2" face="Times New Roman"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b>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 hereunto duly authorized.</font></p>
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<font size="2" face="Times New Roman">Dated:&#160;   October 2, 2006</font></p>  </td>
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<font size="2" face="Times New Roman">GLACIER BANCORP, INC.</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="2" face="Times New Roman">By:</font></p>  </td>
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  <p><font size="2" face="Times New Roman">/s/&#160; Michael   J. Blodnick</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="2" face="Times New Roman">Michael J. Blodnick</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
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  <p><font size="2" face="Times New Roman">President &amp; Chief Executive Officer</font></p>  </td>
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<TYPE>EX-99
<SEQUENCE>2
<FILENAME>gb7370ex99.htm
<DESCRIPTION>EXHIBIT 99
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<p  align=right><font size="2" face="Times New Roman"><b>Exhibit 99</b></font></p>
<p  align="center">
<font size="2" face="Times New Roman"><b>Glacier Bancorp, Inc. Announces Merger With Citizens Development Company</b></font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KALISPELL, Mont., Oct. 2 /PRNewswire-FirstCall/ -- Glacier Bancorp, Inc. (Nasdaq: GBCI) today announced the completion of the merger with Citizens Development Company, a Billings, Montana-based bank holding company with total assets at December 31, 2005 of $430 million.&#160; As a result of the merger, Citizens&#146; bank subsidiaries, Citizens State Bank, Hamilton, Montana; First Citizens Bank of Billings, Billings, Montana; First National Bank of Lewiston, Lewiston, Montana; Western Bank of Chinook, N.A., Chinook, Montana; and First Citizens Bank, N.A., Columbia Falls, Montana, became wholly owned subsidiaries of Glacier.&#160; As a condition to closing imposed by the bank regulators, Glacier has entered into a definitive agreement with Bank of the Rockies to divest the Lewistown branch of its subsidiary, Western Security Bank.</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#147;We are thrilled to have the staff from Citizens Development Company join Glacier.&#160; We are excited for the many opportunities this transaction presents both now and in the future,&#148; said Mick Blodnick, President and Chief Executive Officer of Glacier.&#160; &#147;We hope to begin the integration process immediately and will be working closely with the Citizens staff to achieve that goal.&#148;</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Glacier Bancorp, Inc. is the parent company for ten community banks, including Glacier Bank, Kalispell; Glacier Bank, Whitefish; First Security Bank of Missoula; Valley Bank of Helena; Big Sky Western Bank, Bozeman; and Western Security Bank, Billings, all located in Montana; as well as Mountain West Bank, Coeur d&#146;Alene, with operations in Idaho, Utah and Washington; 1st Bank, Evanston, operating in Wyoming; Citizens Community Bank, Pocatello, operating in Idaho; and First National Bank of Morgan, operating in Utah.</font></p>
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<font size="2" face="Times New Roman">SOURCE&#160; Glacier Bancorp, Inc.<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-0-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10/02/2006<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/CONTACT:&#160; Michael J. Blodnick, +1-406-751-4701, or James H. Strosahl, +1-406-751-4702, both for Glacier Bancorp, Inc./</font></p>
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