“High in the Colorado San Juan Mountains, the Summitville Mine was operated by Canadian mining company Galactic Resources as a cyanide heap leach mine from 1986 until abandoned in 1992. Acid mine drainage resulted in continuous contamination of water used by downstream neighbors, including farmers, ranchers, fishermen and wildlife. Named a Superfund site in 1994, the Summitville Mine killed off 17 miles of the Alamosa River, requiring permanent water treatment at the river’s headwaters.”… Read the rest