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Updated: June 17, 2025
Tail-sluices are always large, long and paved with stones; and sometimes they are double, so that one side may be cleaned up while the other continues washing. In a branch of the Yuba there is, or was not long since, a tail-sluice twenty feet wide. Tunnel-Sluice. A tunnel-sluice is a sluice in a tunnel.
Blasting, therefore, by loosening the earth, enables the hydraulic miner to have an abundant and regular supply of dirt in his sluice, at an expense much less than the cost of manual labor to dig the bank down with pick and shovel. Tail-Sluice. The tail-sluice is a large sluice made for rewashing the tailings or dirt which has previously passed through other sluices.
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