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                                                                    EXHIBIT 31.1

     I, Michael J. Blodnick, certify that:

1.   I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K of
     Glacier Bancorp, Inc

2.   Based on my knowledge, this Amendment No. 1 to the report does not contain
     any untrue statement of a material fact or omit to state a material fact
     necessary to make the statements made, in light of the circumstances under
     which such statements were made, not misleading with respect to the period
     covered by this Amendment No. 1 to the report;

3.   Based on my knowledge, the financial statements, and other financial
     information included in this Amendment No. 1 to the report, fairly present
     in all material respects the financial condition, results of operations and
     cash flows of the registrant as of, and for, the periods presented in this
     Amendment No. 1 to the report;

4.   The registrant's other certifying officer and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over
     financial reporting (as defined in Exchange Act Rules 13a-15(f) and
     15d-15(f)) for the registrant and have:

     (a)  Designed such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under our
          supervision, to ensure that material information relating to the
          registrant, including its consolidated subsidiaries, is made known to
          us by others within those entities, particularly during the period in
          which this Amendment No. 1 to the report is being prepared;

     (b)  Designed such internal control over financial reporting, or caused
          such internal control over financial reporting to be designed under
          our supervision, to provide reasonable assurance regarding the
          reliability of financial reporting and the preparation of financial
          statements for external purposes in accordance with generally accepted
          accounting principles;

     (c)  Evaluated the effectiveness of the registrant's disclosure controls
          and procedures and presented in this Amendment No. 1 to the report our
          conclusions about the effectiveness of the disclosure controls and
          procedures, as of the end of the period covered by this Amendment No.
          1 to the report based on such evaluation; and

     (d)  Disclosed in this Amendment No. 1 to the report any change in the
          registrant's internal control over financial reporting that occurred
          during the registrant's most recent fiscal quarter (the registrant's
          fourth fiscal quarter in the case of an annual report) that has
          materially affected, or is reasonably likely to materially affect, the
          registrant's internal control over financial reporting; and

5.   The registrant's other certifying officer and I have disclosed, based on
     our most recent evaluation of internal control over financial reporting, to
     the registrant's auditors and the audit committee of the registrant's board
     of directors (or persons performing the equivalent functions):

     (a)  All significant deficiencies and material weaknesses in the design or
          operation of internal control over financial reporting which are
          reasonably likely to adversely affect the registrant's ability to
          record, process, summarize and report financial information; and

     (b)  Any fraud, whether or not material, that involves management or other
          employees who have a significant role in the registrant's internal
          control over financial reporting.

                                        March 12, 2010


                                        /s/ Michael J. Blodnick
                                        ----------------------------------------
                                        Michael J. Blodnick
                                        President/CEO