If you prospect for gold in WA State you likely know we can no longer [legally] use motorized equipment for gold mining. I'm back to using a simple sluice box on local rivers and streams. Here's my lightweight setup I use on small gold bearing creeks in the state's Cascade Mountains. My easy to pack gear includes an old and well-modified A-52 sluice, a shovel and a bucket...and this eighty year old miner can still enjoy his favorite outdoor adventure.
My old sluice box has been modified by adding a set of adjustable legs and replacing the original carpet and riffles with something called "Dream Mat". You can look up Dream Mat on YouTube if you want more info. Amazing technology here as this one-piece recovery matting processes stream material without requiring prior classification. Checking for recovered gold is easy...just look for it bouncing around in the "DM's cells".
Buckets of stream material are dumped directly into the upper end of the box and the sluice, water and matting do all my classifying and recovery work for me. At the end of the day final clean up only takes a couple of minutes...loosen the retaining clamp, remove the mat and dump the remaining material into the bucket. Then I take it home.
I found a good spot on a famous gold bearing creek. This is a place where I prospected over forty years ago. Once again it is producing color, mostly fines and flakes. Best of all I can still get the same old thrill from seeing color at the end of the day.
Liberty Dave