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Detail of the buckets of a mining dredge looking straight on

Gold Placers Incorporated, Coal Creek Dredge, Near Coal Creek & Yukon River, Eagle, Alaska. Note the suspended walkway bridge at right and the control wires and pulleys for controlling the dredge movement. (Source: Todd A Croteau, 2014. Courtesy of the U.S. Library of Congress, Prints and Photographs Division, Washington, D.C. Public domain.)

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