CLH

4 hours ago, Geologyhound said:

If it’s truly flotsam, work your way around the edges closest to the water. Aluminum is lighter and will wash further up…

I did waterline to tree line about 40 feet wide. No change.

Went to a small hidden area of beach on a freshwater lake that seems to be the landing point of a lot of floating flotsam.

I might as well have walked into Chernobyl with a Geiger counter! 100% chatter every square inch. 99.999% melted alumi-nuggets. I have never seen something quite so bad. I tried every program, sensitivity way down, sniper programs, custom sonar program from Gary, anything and everything I could to tune the machine down, but no stopping the chatter. No houses or cell tower or EMI anywhere near here, just that much junk in the sand. Worst part is every signal was a good coin signal too. All in the high tones and/or numbers, 80's and 90's. Everything I dug was melted aluminum from pea size to palm sized.

Pulled one zinc penny out of the roar before I gave up and left after about 20 minutes. Just couldn't take the noise and digging 100% aluminum. I've been at this over 30 years and have never hit anything like this. I suppose it's the product of years of bonfires here and then whatever was burnt on any other beach and drifted in to this cove and got stuck in the sand.