A Mineral Surveyor Archive from the important, mineral and ore-rich San Juan Triangle region of Colorado, spanning the years 1878-1935, sold for $28,060 at a three-day Wild West Wonders auction held August 8th-10th by Holabird Western Americana Collections, online and live in the Holabird gallery located at 3555 Airway Drive in Reno, packed with 1,737 lots.