Pictures 4 Bald Mountain Gold Mill, Lead South Dakota

TROJAN MILL, INTERIOR SHOWING PRIMARY MILL No. 1 (ALLIS CHALMERS BALL MILL) FROM EAST, c. 1919. ELECTRIC MOTOR AND DRIVE SHAFT CLEARLY VISIBLE

BALD MOUNTAIN MILL, INTERIOR SHOWING GOLD TANKS FROM WEST, c. 1937. DATE BASED ON USE IN PUBLICATION

BALD MOUNTAIN MILL, INTERIOR SHOWING PRECIPITATION AREA FROM NORTH, c. 1934. SHOWS PRECIPITATION TANK No. 1 (NOTE LOCKS), ZINC FEEDER WITH MIXING CONE, VACUUM RECEIVER AND PIPING

INTERIOR, PORTLAND FILTER FROM SOUTHEAST, PRE-1934. FILTERS WERE IN USE FROM 1918 TO 1934

BALD MOUNTAIN MILL, REFINERY INTERIOR, c. 1937. CRUCIBLE AND DRYING OVENS SHOWN
