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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.
The Goldstream Dredge No. 8 cut a 4.5-mile (7.2 km) track and produced 7.5 million ounces of gold. [2] The dredge was named a Historic Mechanical Engineering Landmark by the American Society of Mechanical Engineers in 1986. [2] In 1984, it was listed as a historic district on the National Register of Historic Places. [1] Today, it is open to ...
The Swanberg Dredge is one of several gold mining dredges that dot the landscape near Nome, Alaska. Also known as the Johnson-Pohl Dredge, this one is located at about mile marker 1 of the Nome-Council Highway just inside the city limits. The dredge stands in a pond about 200 feet (61 m) north of the highway in a small pond.
The dredge mined the entire valley of Cache Creek as far as the mouth of Nugget Creek, then bulldozers mined what remained. Hydraulic mining was also widely used before 1942, and many ditches can be found all over the Dutch Hills today. About 115,000 ounces of placer gold was reported to have been produced from Cache Creek.
The Derry Dredge could dig to a depth of 30 feet, creating a small artificial lake on which the dredge floated while in operation. It is said that in the first three months of the Derry Dredge's operation, it recovered 3000 ounces of raw gold, making it one of Lake County’s richest placer gold deposits.
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 one of the ...
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