my name is Horst and I am a German prospector. Though our Gold is VERY fine about 1/10000 of a gramm per piece I am having fun prospecting. Years ago I have been to CA and AZ but with just a little knowledge and tools. By that time the internet was not the same as is today and you had to find people to teach you. I found some nice color but it could have been much more. This year my wife and I got real lucky to book tickets to San Francisco for very little bucks and we'll be going to northern CA , YUBA river and tributaries. I will sure bring my new Whites GMT and crevicing tools. I would be very happy to get some good advice where to go what to do as my time is VERY limited and I might not be able to come back the next 10 years or so.
Gold 2 you
Anyway here is another mystery solved. In case your wondering where do all those stinking boot tacks come from? When I was down in mexico I'm looking at and studying the old drywasher remnants. The course screens on top of their drywashers where made of flat tin that has been punched with what appeared to be with pick points to make the holes? some round, some square but no doubt punched not drilled.
about 3/8-1/2" holes. this made sense based on the nuggets we were finding in there drywash piles, and the cloth on the bottom bellows and the tin on top of these old drywashers we found was attached with boot tacks.