What Is a Long Tom Sluice

The long tom is a small sluice that uses less water than a regular sluice. It consists of a sloping trough 12 feet long, 15 to 20 inches wide at the upper end, flaring to 24 to 30 inches at the lower end. … The long tom uses much less water than a sluice but requires more labor.

What was the longest gold rush?

Witwatersrand Gold Rush (1886), Johannesburg, South Africa. South Africa has always been known as a place of abundant minerals, but with the discovery of gold in the Witwatersrand Basin in 1885, the most massive gold rush in world history took place.

How does a sluice box work for gold?

Sluice boxes work by essentially creating a straight, consistent channel, with regularly spaced slow spots created by riffles. Each riffle creates an eddy, a backflow of water that allows the gold to settle out. Material is placed at the top of the box and carried in suspension down the channel.

Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.

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