Edwards Plateau

The Edwards Plateau culture was located in central Texas and is closely related to the Eastern Archaic Tradition. Known for their “burned rock mounds” which consist of ash and bone fragments, the Edwards Mound culture dates back to at least 4000 BC. Large quantities of bone fragments and chipped rock material suggest that hunting was the most important activity.

http://www.rra.dst.tx.us/c_t/history/land/edwards%20plateau.cfm

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