Exhibit 31.1

Certification of Chief Executive Officer Pursuant to

Section 302 of the Sarbanes-Oxley Act

 

I, Nanuk Warman, certify that: 

1. I have reviewed this report on Form 10-KSB of Mariposa Resources, Ltd.;

2. Based on my knowledge, this report does not contain any untrue statementof a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading with respectto the period covered by this report; 

3. Based on my knowledge, the financial statements, and other financialinformation included in this report, fairly present in all material respects thefinancial condition, results of operations and cash flows of the small businessissuer as of, and for, the period presented in this report; 

4. The small business issuer's other certifying officer(s) and I areresponsible for establishing and maintaining disclosure controls and procedures(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal controlover financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-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 thesmall 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

5. The small business issuer's other certifying officer(s) and I havedisclosed, based on our most recent evaluation of internal control overfinancial reporting, to the small business issuer's auditors and the auditcommittee of small business issuer's board of directors (or persons performingthe equivalent functions): 

a. all significant deficiencies and material weaknesses in the design or    operation of internal control over financial reporting which could 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 controls over financial reporting. 

Date: 27th day of September, 2007.

 

***/s/ Nanuk Warman               ***

Chief Executive Officer and 

Chief Financial Officer