A prehistoric (c.8000 BC) American Indian culture named for Folsom, New Mexico, stone arrow- or spearheads were discovered in the 1920s in close association with the bones of an extinct breed of bison. Other tools, such as stone scrapers, bone needles, etc., have been found; and it is thought that the culture was a nomadic, hunting one.
Also on this site:
Encyclopedia of Science
Encyclopedia of Alternative Energy & Sustainable Living