What were the years of operation of the mine that a novel group of acidophilic archaea found at?
Iron Mountain Mine Iron Mountain Mine, also known as the Richmond Mine at Iron Mountain, is a mine near Redding in Northern California, US. Geologically classified as a "massive sulfide ore deposit", the site was mined for iron, silver, gold, copper, zinc and pyrite intermittently from the 1860s until 1963. The mine is the source of extremely acidic mine drainage which also contains large amounts of zinc, copper and cadmium. One of America's most toxic waste sites, it has been listed as a federal Superfund site since 1983.
Hilton Mine The Hilton Mine is a zinc, lead and silver mine in northwestern Queensland, Australia, approximately 22 km north of the Mount Isa Mines. The mineralization is in the same grey dolomitic Urquhart Shale as the Mount Isa Mines deposit and a similar diagenesis is posited. It is one of five "supergiant" zinc, lead and silver mineralized deposits that have been found in the Mount Isa Inlier, six if one counts the high silver deposit at Cannington.