The Olsen-Chubbuck Bison kill site is located 16 miles (26 km) southeast of Kit Carson, Colorado. The Paleo-Indian site dates back to an estimated 8000-6500 B.C. and provides evidence for bison hunting long before the use of the bow and arrow or horses. The site was named Olsen-Chubbuck after the amateur archaeologists who discovered the bone bed, Sigurd Olsen and Gerald Chubbuck. The Olsen-Chubbuck site was excavated 1958 and 1960 by Joe Ben Wheat, an anthropologist employed through the University of Colorado Museum of Natural History.^[2] The site contains a bone-bed of almost 200 bison that were killed and processed by Paleo-Indian hunters.

• http://en.wikipedia.org/wiki/Olsen-Chubbuck Bison Kill Site