Pictures 21 Bald Mountain Gold Mill, Lead South Dakota Tweet 1992 MACHINE SHOP FORGE AREA FROM NORTHWEST. POWER HAMMER IN FOREGROUND ON LEFT. 1992 MACHINE SHOP FORGE DETAIL FROM NORTHWEST. 1992 MACHINE SHOP OVEN DETAIL FROM NORTHWEST. 1992 WEST FACADE OF MACHINE SHOP AND EAGLE MINE PORTAL. 1992 EAGLE MINE INTERIOR 1992 VIEW OF BOILER HOUSE FROM SOUTHWEST.