The Topper site is one a hill above the Savannah River, which sweeps past a hilltop containing a large, exposed chert outcrop. Chert is a sedimentary rock that flakes easily and can be worked to produce tools such as knives, arrows, axes and blades.
The U of Texas had a long ongoing dig in Central America on Mayan sites, back when the archeology department was among the leaders in deciphering Mayan glyphs.
They took volunteers who could devote a summer for the dig. I always wanted to go but somehow never could find the time.
Or maybe I was afraid of snakes.
Ping to remind myself