Abstract: A dredging platform has a water pump that creates suction in a hose for drawing loose materials from the bottom of a stream into the hose for transport to a sluice and vibratory screen. Larger stones are dropped off the end of the screen while finer sand and gold ore concentrate fall through the screen into hoppers for delivery to a centrifugal separator. The platform floats in the stream at water level to partially submerge the hoppers in order to provide a steady controlled flow of water over the hopper sides as the "fines" are collected for separation.