Sluice box for narrow creeks (for fine gold)

I designed this sluice box to fit into my kind of creeks in Slovenia, narrow, with not soo much water. It's compact and made from 2 parts glued together. It can fit into backpack! This gold on the picture is from 6-7l of classified material. Test pan first showed 20x colours before i put my sluice box on the creek. It's also very easy to clean! It works great for what is his use :).

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