I live 5 mile downstream from a major dam and reservoir on the Arkansas River. It is sandbar heaven. When the floodgates are closed there is miles and miles of sandbars exposed. I use to walk the riverbed without a metal detector when I was a tad younger and found all kinds of interesting junk. I say junk because most of it was just junk to me at the time. I haven't had my detector down there yet. It is such a huge area to contemplate detecting I wouldn't know where to start. The good thing is, every time the gates are closed you have an all new area to detedt due to the swift river current. If you are not attentive, it could be hazardous to your health however. The floodgates can be opened at any time without warning and you could look around and find yourself cut off from shore by rising water. People are rescued several times a year that this has happened to. A few have drowned. If you are downstream from a dam I would recommend keeping an escape route close by just in case. Things I use to find in the sand were interesting river rocks worn smoothe and polished by the sand, old license plates, cartridge cases, A few have fouind Indian artifacts, arrow heads, etc. I have seen quite a few bottles, probabllly washed out of creek gullies when the water was high. I haven't a clue what may lie buried, but it should be easy digging. Also, quite a bit of quicksand. Quicksand isn't dangerous like in the movies, rather just might cause you to lose your shoes if you get into it. Not unusual for you to sink up to your knees and have to struggle to get out. I don't think I ever heard of anyone getting sucked under quicksand in the river bottoms though. It does trap live stock because they are heavier and don't have sense to get out of it right quick May be a gold mine there, who knows? There are a couple of old low water wagon crossings you can see when the water is low that might bear checking out. Monty