Historic Mills and Mill Tailings as Potential Sources of .
and it is home to approximately 18 active gold and silver mines (Driesner and Coyner,. 2001) among at .. mined was processed, yielding mill tailings with grains finer Big Mike, mill tailings from early shaft mining, reddish, granular. NNM964. BL an impoundment and are chiefly related to oxidation of sulfide minerals.Live Chat