Exhibit 31.1



                 CERTIFICATION OF C.E.O. AND C.F.O. PURSUANT TO
                  SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the accompanying Quarterly Report on Form 10-QSB of Big Cat
Mining Corporation for the quarter ending July 31, 2003, as filed with the
Securities and Exchange Commission on the date hereof, the undersigned, in the
capacity and date indicated below, hereby certifies that:

I have reviewed this quarterly report on Form 10-QSB of Big Cat Mining
Corporation;

Based on my knowledge, this 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 report;

Based on my knowledge, the financial statements, and other financial information
included in this report, fairly present in all material respects the financial
condition, results of operations and cash flows of the small business issuer as
of, and for, the periods presented in this report;

The small business issuer's other certifying officer(s) and I are responsible
for establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-15(e) and 15d-15(d)) and internal control over
financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
for the small business issuer 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 small business issuer, including its consolidated
                  subsidiaries, is made known to us by others within those
                  entities, particularly during the period in which this 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 small business issuer's
                  disclosure controls and procedures and presented in this
                  report our conclusions about the effectiveness of the
                  disclosure controls and procedures, as of the end of the
                  period covered by this report based on such evaluation; and

         (d)      disclosed in this report any change in the small business
                  issuer's internal control over financial reporting that
                  occurred during the small business issuer's most recent fiscal
                  quarter (the small business issuer's fourth fiscal quarter in
                  the case of an annual report) that has materially affected, or
                  is reasonably likely to materially affect, the small business
                  issuer's internal control over financial reporting; and

The small business issuer's other certifying officer(s) and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the small business issuer's auditors and the audit committee of
the small business issuer'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
                  small business issuer'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 small
                  business issuer's internal control over financial reporting.

September 12, 2003                   /s/ Michael Halvorson
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Date                                 Michael Halvorson,
                                     Chief Executive Officer and Director