You have brought back a painful and depressing memory. I have mentioned this before, I think. I was about 20(now nearly 70) and I was hunting on a Texas "Hill Country" ranch somewhere out from Fredericksburg, Texas. I have never recalled where. It was a typical Nov. day. low of 50* and high of 70*. I was just walking around the deer lease looking for arrowheads and went down a gradual slope about a mile or so towards a little dry creek that was about 15 feet or so across. Up against one bank was about 50 or so 4-5 foot pieces of rebar. None was rusted, in fact, I dropped a piece and it shown shiny. I wondered who in the world would leave rebar out there and figured the rancher was going to build something. It was straight metal, no twists and worthless. I forgot about it. A decade later I read about Harp Perry(?) and a partner mining silver in the hills. They used cane from a creek to pour their smelted silver in because it was green and wouldn't burn. In time it rotted away, leaving 4-5 feet of pure silver tubes. They were set upon by Comanches and buried them by a creek. I think to this day that's what I found, but cannot remember exactly where I was. I used to spend free time searching, but never found anything. Might have been another town. I had a couple of leases and day hunted too. Just never remembered where. Pretty crappy treasure hunter aren't I?