================================================================================

                                Gary R. Henrie
                                 Attorney at Law


8275 S. Eastern Ave., Suite 200                     Telephone:  702-616-3093
Las Vegas, NV  89123                                Facsimile:  435-753-2947
                                                    E-mail:  grhlaw@hotmail.com


January 12, 2007

Via EDGAR

THE UNITED STATES SECURITIES
AND EXCHANGE COMMISSION
Mr. John D. Reynolds
Assistant Director
Division of Corporation Finance
Mail Stop 3561
Washington, D.C. 20549

         Re:      Pioneer Exploration Inc.
                  Registration Statement on Form SB-2
                  Filed July 13, 2006
                  File No. 333-135743

Dear Ladies and Gentlemen:

On October 13, 2006, Pioneer  Exploration Inc. (the "Company"),  filed amendment
number one to its registration statement on Form SB-2 in response to the staff's
comment  letter  dated July 21,  2006.  In  response  to the  staff's  comments,
amendment  number  one added  subsections  entitled  "History  of  Chilco  River
Holdings Inc.", "Connections between Companies" and "Rule 419" at the end of the
section  titled  "Business"  in the  registration  statement.  Subsequent to the
filing of amendment number one, the staff contacted  Company and orally reissued
comment 1.b. of the letter.

This letter  accompanies the filing of amendment  number two to the registration
statement. In amendment number two, the three sections added in amendment number
one have been  expanded to more fully  respond to comment 1.b.  Other changes to
the registration  statement in amendment number two are updates to the filing to
bring it current.

Very truly yours,


/s/ Gary R. Henrie

Gary R. Henrie