Excavation profile at Bonfire Shelter showing two widely separated episodes of buffalo hunting on the Southern Plains, both apparently correlated with wetter/cooler periods when grasslands and buffalo populations expanded. At the top is a layer of burned bison bone from one or several closely spaced "jumps" during which as many as 800 buffalo were killed by Late Archaic hunters about 800 B.C. (2800 years ago). Near the bottom is a layer of burned bison bone representing similar jumps some 12,000 years ago. (Visit the Bonfire exhibit on TBH for more information.) Photo from 1964 excavations, TARL archives.
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