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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 Yuba Goldfields, also known as the Hammonton dredge field, is the largest gold dredge field in California. Located along the Yuba River approximately 6–12 miles (10–20 km) upstream of the town of Marysville, in Yuba County, the Hammonton dredge field was actively dredged for gold from 1904 [1] to 1968. [2]
This gold dredge was used in placer mining along the Powder River from 1935 to 1954, representing a period of mining by dredge that began in 1913. The last of three dredges in the Sumpter Valley in that period, it produced some $4.5 million in gold in its career. It is preserved as a museum. [8] [9] 12: Sumpter Valley Railway Historic District
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 ...
North Carolina was the site of the first gold rush in the United States, following the discovery of a 17-pound (7.7 kg) gold nugget by 12-year-old Conrad Reed in a creek at his father's farm in 1799. The Reed Gold Mine , southwest of Georgeville in Cabarrus County, North Carolina produced about 50,000 troy ounces (1,600 kg) of gold from lode ...
For the next 14 years, drift mining placer gold deposits in buried Tertiary channels partially made up for the loss of placer gold production, but overall production declined. Production rose again with the advent of large-scale dredging. The first successful gold dredge was introduced on the lower Feather River near Oroville in 1898. [18]
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. In 1924, the dredge operation was sold to the Mount Elbert Gold Dredging Company, and the operation was continued in Box Creek until 1926, when the dredge was dismantled.
So the first new dredge (no.2) was not getting gold until 22 Dec 1890. [56] Despite delays in construction and flood damage caused by the 'raging river,’, all four dredges were at work by May 1891. [57] The three new dredges – prosaically named Dredges 2, 3 and 4 – were of identical construction.