Many suggestions had some pieces or parts that would work some of the time, but Dredger Dan’s suggestion was, in my humble opinion, the cleanest, cleverest, and most dependable.

So, how much rain does it take to cause a major movement of gravels in a stream and redistribute the gold? The technical answer is enough water to move the bed load of the river.

The problem is every other nugget hunter and drywash prospector had the same idea. As a result, you can spend days, weeks, and even months detecting these areas and not find a single nugget.

People always ask me what is so important about locating contact zones. The answer to that: Gold.