Traditional sluicebox designs have dirt and rocks lifted to the top or back of the box with an excavator or hand shovel. This uses much energy to lift rocks and use water pumped to the headerbox to push rocks and earth over a metal grill and carpet to collect gold slivers. When the dirt is lifted into the top hopper of the "highbanker" sluicebox, water is pumped up and flooded over the dirt and rocks. Rocks tumble down the slope, dirt is mixed into a mud slurry with rocks, pebbles and gold and rocks bounce over the top grate, earth and mud passes over the screen and the heaviest material is trapped in the riffle matt. Once the prospector is ready to examine the black sand in his riffle Matt, they remove all rocks, lift the top grate and carefully rolls the riffle matt with any trapped gold in the riffles. The prospector then places the matt into a bucket and pours water over the matt to flood the gold and particles out and into the bucket for examination. Gr...
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