[sailor]

I used to work for an archaeology firm and we found some stone bowls on Eglin AFB which were carbon dated to be about 15,000 years old. There were two of them, upside down, stacked on top of each other and half a meter down. We surveyed every 1.5 meters, going a meter down in lines radiating out in many directions out to 30 meters and NEVER found anything else. That was by far the coolest thing ever, especially since the nearest source for those stones were in North Georgia.