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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.
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Pages in category "Gold dredges" ... Sumpter Valley Gold Dredge; Swanberg Dredge This page was last edited on 29 June 2022, at 23:36 (UTC). ...
Between them, the dredges traveled more than 8 miles (13 km), [4] extracting $10 to 12 million worth of gold. Still, it cost more to run than the gold could pay for. The last dredge closed in 1954, more than $100,000 (~$900,368 in 2023) in debt. In its lifetime this dredge made $4.5 million at $35 per troy ounce.
The AU Grabber (pronounced as: Gold Grabber; [NB 1]) is a self-propelled barge excavator dredge used to mine Bering Sea placer gold deposits in the region around Nome, Alaska, USA. It is owned and operated by Richard Schimschat and featured in the Discovery Channel USA mining reality TV show Bering Sea Gold .
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 ...
Dredges were used in the Klondike River valley from 1910-1950. [8] A dredge could do the work of 2,400 [9] persons while operated by 10-12. [10] It would create a pool of water that moved along with it as it dug up gravel in front and deposited it behind itself. Inside sand and gold particles were separated from rocks and then gold from sand.
This Hammonton dredge field rapidly became one of the most active dredge fields in the state, with 14 gold dredges operating by 1908. [1] Dredging to clear the active channel of the Yuba River was done periodically, but a vast majority of dredging was done away from the active channel, with the purpose of recovering gold from the river sediments.
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