Exhibit 31.1/31.2 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-K of Mariposa Resources, Ltd.; 2. 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; 3. 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 registrant as of, and for, the periods
presented in this report; 4. I (the registrants certifying
officer) am 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 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 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 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. I (the registrants certifying
officer) have disclosed, based on my 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 controls over financial
reporting. Date:  9 day of October, 2009.  /s/ Nanuk Warman________________ Chief Executive and Financial Officer