We just completed a trip to another river, and yes, there was definite movement and redistribution of gravels, and other prospectors have seen this as well.

The large buckets were favorable for the type of ground worked. The gravel was tenacious and compact, due to the existence of irregular pockets of clay.

I believe this is a powder-keg waiting to explode down the road—with potentially devastating effects on society—but positive implications for gold and silver.