<SUBMISSION>
<ACCESSION-NUMBER>0001275287-06-006615
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20061227
<ITEMS>5.02
<ITEMS>9.01
<FILING-DATE>20061228
<DATE-OF-FILING-DATE-CHANGE>20061227
<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>061301414
</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>gb8370.htm
<DESCRIPTION>FORM 8-K
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<p  align="center"><font size="5" face="Times New Roman"><b>SECURITIES AND EXCHANGE COMMISSION<br> </b></font>
<font size="3"><b>Washington, D.C.&#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<br> the Securities Exchange Act of 1934</b></font></p>
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<font size="2" face="Times New Roman"><b>Date of Report (Date of earliest event reported):<br> December 27, 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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<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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<font size="2" face="Times New Roman"><b>81-0519541</b></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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<font size="2" face="Times New Roman"><b>49 Commons Loop</b></font></p>  </td>
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<font size="2" face="Times New Roman"><b>Kalispell, MT&#160; 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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<p>
<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:</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="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="2" face="Times New Roman">Pre-commencement communications pursuant to Rule   14d-2(b) under the Exchange Act of (17 CFR 240.14d-2(b))</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 (17 CFR 240.13e-4(c))</font></p>  </td>
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<font size="2" face="Times New Roman"><b>Item 5.02</b></font></p>  </td>
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<font size="2" face="Times New Roman"><b>Departure of Directors or Principal   Officers; Election of Directors; Appointment of Principal Officers.</b></font></p>  </td>
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<p><font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;John S. MacMillan has announced his retirement from the Glacier Bancorp, Inc. Board of Directors to be effective on December 31, 2006. </font></p>
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<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mr. MacMillan retired as Chief Executive Officer of the Company in 1998 and as Chairman of the Board in December 2005. He has been a member of the Company&#146;s Board since 1977.&#160; </font></p>
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<font size="2" face="Times New Roman">A copy of the press release announcing Mr. MacMillan&#146;s retirement is attached as Exhibit 99.1 and is incorporated herein in its entirety by reference.</font></p>
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<font size="2" face="Times New Roman"><b>Item   9.01</b></font></p>  </td>
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<font size="2" face="Times New Roman"><b>Financial   Statements and Exhibits</b></font></p>  </td>
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<font size="2" face="Times New Roman">(a)</font></p>  </td>
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<font size="2" face="Times New Roman">Financial   Statements:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;None</font></p>  </td>
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  <p  align=right><font size="2" face="Times New Roman">(b)</font></p>  </td>
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<font size="2" face="Times New Roman">Pro Forma Financial Information:&#160; None</font></p>  </td>
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<font size="2" face="Times New Roman">(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="2" face="Times New Roman">Shell Company Transactions.&#160; None</font></p>  </td>
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<font size="2" face="Times New Roman">(d)</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="Times New Roman">Exhibits.</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="Times New Roman">99.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Press Release   dated December 27, 2006 announcing John MacMillan&#146;s retirement.</font></p>  </td>
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<font size="2" face="Times New Roman"><b>SIGNATURE</b></font></p>

<p><font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Dated:&#160; December 27, 2006</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="Times New Roman">GLACIER BANCORP, INC.</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="Times New Roman">/s/&nbsp;Michael J. Blodnick</font></p>  </td>
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<font size="2" face="Times New Roman">Michael J. Blodnick</font></p>  </td>
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  <p><font size="2" face="Times New Roman">President and Chief Executive Officer</font></p>  </td>
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<TYPE>EX-99.1
<SEQUENCE>2
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<DESCRIPTION>EXHIBIT 99.1
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<p  align=right><font size="2" face="Times New Roman"><b>Exhibit 99.1</b></font></p>
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<font size="2" face="Times New Roman"><b>Glacier Bancorp, Inc. Announces MacMillan&#146;s Retirement</b></font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KALISPELL, Mont., Dec. 27 /PRNewswire-FirstCall/ -- Glacier Bancorp, Inc. (Nasdaq: GBCI) announced that John S. MacMillan will retire from the Company&#146;s Board of Directors effective December 31, 2006.</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mr. MacMillan enjoyed a 31-year career with the Company prior to retiring from active management in June 1998, ending his career as President and CEO. The Company had $14 million in assets when he began employment with Glacier Bank in 1967.&#160; Assets at September 30, 2006 were $4.126 billion.&#160; President and Chief Executive Officer Michael J. Blodnick stated, &#147;With a career that spanned 40 years with Glacier Bancorp, John had such a positive influence on the Company.&#160; His knowledge of the business and his dedication to Glacier will not be easily replicated.&#160; We wish John all the best in his retirement.&#148;</font></p>
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<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 15 community banks, including Glacier Bank, Kalispell; Glacier Bank, Whitefish; First Security Bank of Missoula; Valley Bank of Helena; Big Sky Western Bank, Bozeman; Western Security Bank and First Citizens Bank of Billings; Citizens State Bank, Hamilton; First National Bank of Lewistown; Western Bank of Chinook, N.A.; and First Citizens Bank, N.A., Columbia Falls; 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>
<p>
<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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;12/27/2006<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 of Glacier Bancorp, Inc./<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(GBCI)</font></p>



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