EXHIBIT 23.7 WILLIAMS & WEBSTER, P.S. Certified Public Accountants 601 West Riverside Suite 1940 Spokane, Washington 99201-0611 (509) 838-8111 FAX (509) 624-5001 CONSENT OF CERTIFIED PUBLIC ACCOUNTANTS Board of Directors Ancona Mining Corporation Vancouver, BC Canada We consent to the use of our report dated January 15, 2001, on the financial statements of Ancona Mining Corporation, as of December 31, 2000 and the period then ended, and the inclusion of our name under the heading "Experts" in the Form SB-2/A-3 Registration Statement filed with the Securities and Exchange Commission. /s/ Williams & Webster P.S. Williams & Webster, P.S. Spokane, Washington March 1, 2001