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The refuge contains the very active and popular Virgin Valley Opal Mining District whose mineral rights were grandfathered-in with the establishment of the sanctuary. [3] Rockhounds search for precious opal , agates , petrified wood , carnelian , obsidian , rhyolite , jasper , hyalite opal , and psilomelane , among other semiprecious gemstones .
The downstream Nevada half of the valley has the very beginnings of Lake Mead, about 20 miles (32 km) upstream, where the Virgin River used to flow. Littlefield, AZ in the valley's northeast [ 4 ] is located at 36°54′0″N 113°56′0″W / 36.90000°N 113.93333°W / 36.90000; -113.
The largest producing mines of Virgin Valley have been the famous Rainbow Ridge, [41] Royal Peacock, [42] Bonanza, [43] Opal Queen, [44] and WRT Stonetree/Black Beauty [45] mines. The largest unpolished black opal in the Smithsonian Institution, known as the "Roebling opal", [ 46 ] came out of the tunneled portion of the Rainbow Ridge Mine in ...
In 2020 mining overall contributed $9.5 billion to the state's economy, $8.4 billion from gold and silver mining (all silver produced in Nevada is as a by-product from gold mining). Gold production from Nevada was higher than any other U.S. state, 4,632,690 troy ounces (144,090 kg) in 2020 (a decrease of 4.8% on 2019), accounting for 76% of ...
William M. Stewart, who abandoned mining to become an attorney in Virginia City, Nevada, participated in mining litigation and the development of mining on the Comstock Lode. As Nevada became a state in 1864, Stewart assisted in developing its constitution, and became the first United States Senator from Nevada, where he helped pass the General ...
Champion-Providence Mine was a consolidation of two adjoining gold mines in Nevada City, California subsequent to the California Gold Rush. After it became the Champion Group following annexation of additional adjacent mining concerns, it became one of the two most productive mining groups in the Nevada City Mining District, [ 1 ] alongside the ...
Environmentalists were pleasantly surprised when Nevada Gold Mines (NGM) put the brakes on the expansion plans this week at the Long Canyon Mine along Interstate 80 about 30 miles (48 kilometers ...
The Nevada Foundry was built to serve the needs of loggers and California Gold Rush miners who were working mines in the Sierra Nevada foothills. Nevada City's fire of July 1856 destroyed the small foundry operated by Coker. Afterwards, he acquired a new site on the corner of Bridge and Spring streets and began construction on a new building ...