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.
Iron Valley mine The Iron Valley mine is a large iron mine located in the Pilbara region of Western Australia. Iron Valley represents one of the largest iron ore reserves in Australia and in the world, having estimated reserves of 259.1 million tonnes of ore grading 58.3% iron metal.