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The Blue Ledge Mine is an inactive underground copper mine that has been classified as a Superfund Site by the Environmental Protection Agency (EPA) due to high concentrations of heavy metals. The mine is located approximately 3 miles south of the California–Oregon border in the Rogue River-Siskiyou National Forest . [ 1 ]
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 , quartz , and pyrite intermittently from the 1860s until 1963.
This is a list of Superfund sites in California designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up ...
The New Idria Mercury Mine was claimed in 1854, with the first brick furnace built in 1857. During the California Gold Rush, mercury was the key component to extract gold from ores. Mercury, a major component in the cinnabar-rich rocks in Idria, could be economically extracted to support nearby gold mining and processing
The roots of mercury poisoning in waterways began with the historic mining of gold within California's streambed and hillsides; since the California Gold Rush, mercury has been used for gold extraction for its ability as a catalyze with the precious metal. due to the process of extraction and washing, mercury used would either be burned away as ...
Argonaut Mining Company: 1893–1942 registered as California Historical Landmark #786. Golden Fleece Tunnel: Westville: Golden Fleece Mining & Milling Co. Iron Mountain Mine: Redding: Kennedy Mine: Jackson: 1886–1942 South of Sutter Gold Mine Locarno Mine
Like most, I entered the park's main day-use area by way of State Routes 9 and 236 near Boulder Creek. The Redwood Loop Trail is a flat route that includes some of the park's biggest and oldest trees.
Western Aggregate owns mining rights over much (but not all) of that property as a result of a purchase from a gold mining company in 1987 by its parent company Centex Construction, based in Texas. [ 7 ] [ 8 ] The Goldfields is the largest aggregate mine in the State of California, [ 9 ] as well as one of only two dredge gold-mining operations ...