“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.” (Denver Open Media)

Click here to read the full article and watch the video: https://www.denveropenmedia.org/shows/summitville-mine-disaster-making-superfund-site-preemption-democracy