The Tom Burns prospect is near the west contact of the Pennsylvanian to Permian, Ahtell Creek intrusive which here is quartz monzonite. Based on float and prospect pits, the Tom Burns vein strikes northwest and dips northeasterly. The vein varies from about 2 to 8 feet wide and consists mostly of quartz. Sulfides, predominantly galena with minor chalcopyrite and tetrahedrite, form bands on the walls of vein as much as one foot wide. A sample cut from the westernmost outcrop of the Tom Burns No. 1 claim contains trace amounts of gold and silver, 12.37 percent lead, and 0.22 percent copper. A representative sample of float collected from the Tom Burns No. 2 claim contained 0.01 ounce of gold per ton, a trace of silver and copper. and 7.82 percent lead (Thorne, 1946, fig. 3 and p. 5-6).