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The Argo Tunnel is a 4.16-mile (6.69 km) mine drainage and access tunnel with its portal at Idaho Springs, Colorado, USA.It was originally called the Newhouse Tunnel after its primary investor, Salt Lake City mining magnate Samuel Newhouse, and appears by that name in many industry publications from the time period when it was constructed.
The mine was owned by the General Atomics subsidiary Cotter Corporation, which estimated that there are an additional 16 million pounds (7300 metric tons) of uranium oxide resource remaining in the mine. In 2024, the Colorado Department of Natural Resources Division of Reclamation, Mining and Safety (DRMS) took the mine over from Colorado ...
The owners of the mine, Cotter Corp., rerouted the Ralston Creek around the mine site after uranium levels of between 40 and 50 parts per billion were discovered in the creek, greater than the 30 ppb federal drinking water standard. [7] Cotter hopes the rerouting will be temporary while it cleans the contaminated mine using bioremediation. [8]
Thompson Creek Metals expects to reach approximately 60,000 tpd by the end of 2015 by utilizing temporary crushing. [1] Thompson Creek Mine (near Challis, Idaho) — The Thompson Creek Mine is a primary molybdenum mine located approximately 35 miles southwest of Challis in Idaho's Custer County, a historic mining area. Known as the Thompson ...
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Tour guide identified as victim who died in Colorado gold mine elevator malfunction. Ahjané Forbes, USA TODAY. October 12, 2024 at 10:07 AM.
Care and maintenance is a term used in the mining industry to describe processes and conditions on a closed mine site at which there is the potential to recommence operations at a later date. During the care and maintenance phase, production is stopped but the site is managed to ensure it remains in a safe and stable condition.
A tour guide died at a Colorado gold mine after an elevator experienced a mechanical issue hundreds of feet below ground, trapping a dozen tourists for several hours, authorities said. The ...