Those ‘dry banks’ areas are quite familiar to an East Tennesseean; our TVA lakes are drained down to river floadplain level every Fall. As a kid living near Boone Lake, I use to find some very interesting things in the muddy flats and caking silt around boat docks. I always had plenty of fishing lures in the Spring! Even found a nice Zebco rod and reel that cleanup to be used for a couple of years until I had it pulled into the lake by something too big down near the dam.