![]() The operations were usually terminated by the autumn floods. ![]() The river bed exposed by such methods was prospected and the pay-dirt when found taken out and washed, particular attention being paid to the surface of the bed-rock. ![]() Sometimes wing-dams were built out from the bank above and below the part of the river it was desired to work, and a third dam connecting their mid-stream ends was constructed parallel to the direction of the current. Sometimes, tunnels were made to drain permanently large reaches and deliver the water at a lower point. This was usually done by building two dams from bank to bank, with their foundations on bedrock, the water being carried off in a wooden flume, starting above the head-dam and terminating below the foot-dam. In river mining, an entire river was frequently deflected from its course so as to lay bare a section of its bed. Gold dredging in now practised on the rivers of California, has is now superseded river mining. Please send us a mail with all your specifications and requirements and we will design a raft according to these details.To understand How Does a Gold Dredge Work, we may want to start by looking at California or Alaska. If you have specific requirements for a raft, we can gladly help with that as well. ![]() It can be used as a shore based unit as well. The great plus about this river gold dredge is that it does not necessarily have to fit on a raft. How convenient is that to have it handy at any time? Because of its small compact size, it easily fits into the trunk of your car or SUV. Assembly takes less than 10 minutes and folds up nice and compact. ![]() This is a lightweight, portable 2 inch river gold dredge with inflatable pontoons, and is used for working gravel, sand or stone. ![]()
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