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The Ruby–Poorman mining district in the U.S. state of Alaska produced nearly a half million ounces of gold, all from placer mines. Some of the largest gold nuggets found in Alaska are from the district, which lies along the Yukon River. [1] The placers are mostly deeply buried, and most were originally worked with shafts and drifts. Dozens of ...
The Ruby-Poorman District lies south of the Yukon River. The district produced nearly a half million ounces of gold, all from placer mines. The largest gold nugget ever found in Alaska (294.1 troy oz) was recovered from Swift Creek in 1998. [31] The placers are mostly deeply buried, and most were originally worked with shafts and drifts.
Gold mining Dredge No. 4 ( Hän : Lëzrą Kä̀nëchà "s/he is looking for money" ) is a wooden-hulled bucketline sluice dredge that mined placer gold on the Yukon River from 1913 until 1959. It is now located along Bonanza Creek Road 13 kilometres (8.1 mi) south of the Klondike Highway [ 1 ] near Dawson City , Yukon , where it is preserved as ...
The "Discovery Claim (Claim 37903)", a mining claim on Bonanza Creek where the Klondike Gold Rush began, the discovery of which marked the beginning of the development of the Yukon; [4] and "Dredge No. 4", a preserved bucketline sluice dredge used to mine placer gold and which symbolizes the importance of dredging operations to the evolution of ...
Gold miners in the Yukon are discovering mummified ancient animals from the Ice Age.. Paleontologists often gather truckloads of fossils from the mines, but mummies are special and rare. Photos ...
In North America, placer mining was famous in the context of several gold rushes, particularly the California Gold Rush and the Colorado Gold Rush, the Fraser Canyon Gold Rush and the Klondike Gold Rush. Placer mining continues in many areas of the world as a source of diamonds, industrial minerals and metals, gems (in Myanmar and Sri Lanka ...
Gold mining is one of the most common uses for the staking of mining claims. In Alaska, state mining claims may be up to 160 acres (0.65 km 2), and there is no distinction between lode or placer claims. The boundaries of the claim must follow the 4 cardinal directions, with an exception being adjustments for existing valid claims.
Gold Dredge, Klondike River, Canada, 1915 The Yankee Fork dredge near Bonanza City, Idaho, which operated into the 1950s. A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story machines built in the first half of the 1900s.