Man, I like this kind of stuff. Thanks Jeff!
There is so much stuff right under our feet hidden in the soil. Shifting river banks, gravel bars and sand bars is the easiest places to find treasures. Treasures can come in many forms depending on the hunter of such things. One of the closest places to you Jeff is the Arkansas river in Oklahoma. I have a couple of friends that used to walk the river when low looking for points and old bones. Mastodon and Mammoth teeth, Bison caps (skull tops with horns) and of course points (projectile points) were the goal. Big flood events shift the banks and bars expose the stuff and low water events bring out the people looking. The first ones on the spots reap the best stuff. just like the point hunting Pat and I used to do all the time. It becomes popular and it doesn't matter there will always be footprints to be found no matter how quickly you get there :).
Florida is a real hotspot for looking but diving is involved.