Exhibit 31


Certifications pursuant to Securities and Exchange Act of 1934 Rule 13a-14 as
adopted pursuant to Section 302 of Sarbanes-Oxley Act of 2002:
--------------------------------------------------------------------------------

I, Michael Chaffee, President and Chief Executive Officer of Western Sierra
Mining Corp. (the "Company") certify that:

1. I have reviewed this annual report on Form 10-QSB of the Company;

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 am responsible for establishing and maintaining disclosure controls and
procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the
Registrant and I have:

a) designed such disclosure controls and procedures to ensure that material
information relating to the Registrant, including its consolidated subsidiaries,
is made known to me by others within those entities, particularly during the
period in which this report is being prepared;

b) evaluated the effectiveness of the Registrant's disclosure controls and
procedures as of a date within 90 days prior to the filing date of this report
(the Evaluation Date); and

c) presented in this report my conclusions about the effectiveness of the
disclosure controls and procedures based on my evaluation as of the Evaluation
Date;

5. I have disclosed, based on my most recent evaluation, to the Registrant's
auditors and the audit committee of Registrant's board of directors (or persons
performing the equivalent function):

a) all significant deficiencies in the design or operation of internal controls
which could adversely affect the Registrant's ability to record, process,
summarize and report financial data and have identified for the Registrant's
auditors any material weaknesses in internal controls; 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; and

6. I have indicated in this report whether or not there were significant changes
in internal controls or in other factors that could significantly affect
internal controls subsequent to the date of my most recent evaluation, including
any corrective actions with regard to significant deficiencies and material
weaknesses.

Date: May 10, 2004


/s/ Michael M. Chaffee
-----------------------
Michael Chaffee
Chief Executive Officer

<PAGE>


Certifications pursuant to Securities and Exchange Act of 1934 Rule 13a-14 as
adopted pursuant to Section 302 of Sarbanes-Oxley Act of 2002:
--------------------------------------------------------------------------------


I, Dennis Atkins, Chief Financial Officer of Western Sierra Mining Corp.(the
"Company") certify that:

1. I have reviewed this annual report on Form 10-QSB of the Company;

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 am responsible for establishing and maintaining disclosure controls and
procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the
Registrant and I have:

a) designed such disclosure controls and procedures to ensure that material
information relating to the Registrant, including its consolidated subsidiaries,
is made known to me by others within those entities, particularly during the
period in which this report is being prepared;

b) evaluated the effectiveness of the Registrant's disclosure controls and
procedures as of a date within 90 days prior to the filing date of this report
(the Evaluation Date); and

c) presented in this report my conclusions about the effectiveness of the
disclosure controls and procedures based on my evaluation as of the Evaluation
Date;

5. I have disclosed, based on my most recent evaluation, to the Registrant's
auditors and the audit committee of Registrant's board of directors (or persons
performing the equivalent function):

a) all significant deficiencies in the design or operation of internal controls
which could adversely affect the Registrant's ability to record, process,
summarize and report financial data and have identified for the Registrant's
auditors any material weaknesses in internal controls; 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; and

6. I have indicated in this report whether or not there were significant changes
in internal controls or in other factors that could significantly affect
internal controls subsequent to the date of my most recent evaluation, including
any corrective actions with regard to significant deficiencies and material
weaknesses.

Date: May 10, 2004


/s/  Dennis Atkins
-----------------------
Dennis Atkins
Chief Financial Officer