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• tangs and regular transverse flaking -- the Clovis fluted point. Within <br />the intermountain region, two presumed Clovis sites, the Union Pacific <br />Mammoth Kill Site near Rawlins, Wyoming, and the Colby Site in the Big <br />Horn Basin have produced evidence of the Llano Complex dating to approxi- <br />mately 9300 B.C. Surface finds associated with this tradition have been <br />made in Skull Creek Basin, south of Dinosaur (Weber et al. 1977: 20), and <br />near Cimmaron, Colorado (Carpenter et al. 1976). <br />The Folsom hunters refined or replaced the Clovis point with a finer <br />flaked, smaller projectile characterized by channel flaking on either <br />side extending over half its length. With these points, megafauna of the <br />Late Pleistocene, primarily Bison antiquus, were hunted. The Lindenmeier <br />Site of northeastern Colorado and Lubbock Site in Texas are probably the <br />best representatives of the Folsom tradition, which spans about 2000 years <br />(9000-7000 B.C.), climaxing around 8000 B.C. <br />• A wide variety of unfluted projectile points characterize the Plano <br />tradition, although these can be grouped into two basic types: those <br />resembling the Clovis-Folsom types and those exhibiting parallel flaking. <br />The Plainview, Midland, Milnesand, and Meserve are of the former type; the <br />Agate Basin, Hell Gap, Cody, Scottsbluff, Eden, James Allen, Fredrick, and <br />Lusk are of the latter. The Midland point appears to be the oldest, over- <br />lapping with the Folsom horizon at the Hell Gap Site and dating ca. 10,700 <br />to 10,400 B.P. (Prison 1978: 31). The Allen/Fredrick/tusk group appear to <br />be the most recent of the Plano points, dating ca. 8000 B.P. They and <br />others exhibit an oblique tilt to their parallel flaking. Radiocarbon dates <br />from the Plainview Site in Texas suggest a time period for the Plano of <br />7800-5100 B.C. <br />It is generally accepted that the Paleo-Indians lived a nomadic exis- <br />tence, relying upon big game hunting for their subsistence; this thesis is <br />supported by an apparent predilection of these peoples for campsites close <br />to water and commanding a good view of surrounding hunting grounds (Reed <br />and Scott 1980: 29). In western Colorado, Paleo-Indian projectile point <br />13 <br />