The Sweetwater Biface is one of the most skillfully percussion
flaked bifaces ever found in North America. The ancient craftsman
who made it had mastered the flintknapping skill of percussion
flaking. Since it is so well made it's intended use may have been
for ceremonial purposes or it could have been used as a knife.
This biface may be related to the Caddoan Culture and may date
to approximately A.D. 1300 to A.D. 1500. It measures 9 7/16 inches
long, 3 3/8 inches wide and 3/16 of an inch thick.