Copper Basin Mining District Historic Photographs

Description: Carroll Hill is a large pile of granulated slag located between Davis Mill Creek and Highway 68. Some of this slag has been reprocessed and sold for use as roofing granules or sand blasting agent. Ore that was mined in Copper Basin, and many of the associated processing wastes that remain, contain metal sulfide compounds that oxidize when exposed to the air. These oxidized sulfates produce acid drainage that can degrade surface water quality.

Photo Index