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<br /> <br />several miles south of the project area. The following <br />discussion draws heavily on that review. <br />Prehistoric occupations of the southeastern Colorado Plains <br />are traditionally classiFied into one of Eour different stages. <br />Those stages and their temporal spans and subdivisions are <br />described briefly below. <br />Pre-Palen-Indian Stage: prior t^ 12,000 B.P.(before present), <br />010,000 B.C.). Also known as the Pre-Pco~ectile Point Stage, <br />this stage is not universally accepted. Evidence From eastern <br />Colorado consists primarily of Pleistocene Faunal remains in <br />association with possible bone tools and Flakes. No projectile <br />points or other stone tools have been recovered in direct <br />association. <br />Palen-Indian Stage: 12,000 t^ 7500 B.P. 010,000 to 5500 <br />B.C.). This stage encompasses the earliest well-accepted <br />evidence For the human occupation of the region. Palen-Indians <br />ace believed to have been primarily big-game hunters, although <br />there is increasing recognition that a mixed hunting-gathering <br />subsistence pattern was Followed. This stage coincides with the <br />end of the Pleistocene climatic episode and the subsequent <br />Plesitocene-Holocene transition. The stage is generally divided <br />into three cultural/temporal periods. <br />- Clovis Period: ca. 11,500 t^ 11,000 B. P.(95OO to 9000 <br />B.C.). This period is distinguished by distinctive Fluted and <br />non-Fluted lanceolate projectile points and the remains of <br />butchered mammoth and other Late Pleistocene fauna. <br />- Folsom Period: ca. 10,800 to 10,200 B.P.CBBOO to 8000 <br />B.C.). Folsom period sites are distinguished by deeply fluted <br />4 <br />