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• from Deluge Shelter (Leach 1970: 192) and by Duncan-Hanna points from <br />Wyoming (Wheeler 1954; Creasman and Jennings 1977: 20). Lanceolate <br />Archaic points including Humboldt concave base and Blackrock concave <br />base have been reported in the Sand Wash Basin by Stucky (1977) and near <br />Walden by Armstrong (1980). Other projectile points associated with this <br />period are the large-stemmed and indented base points, and the large side- <br />and corner-notched points. <br />South of the project area, a variant of the Western Archaic tradition <br />referred to as the Uncompahgre Complex was first identified by Worming ton <br />and Lister (1956) on the Uncompahgre Plateau. This variant produced tool <br />assemblages similar to those of the Desert tradition but was restricted <br />to a relatively short time span, 2000 B.C. - 1 A.D. The Uncompahgre Com- <br />plex has since been redefined by Buckles (1971), who suggests that it <br />spanned a much longer time period, 8000 B.C. - A.D. 1880, and represents <br />a unit comparable to the Desert tradition rather than an off-shoot of it. <br />• North of the project area, the late Western Archaic tradition has been <br />defined by Creasman et al. (1977) and Leach (1970) as having occurred in <br />northwestern Colorado from ca. 1300 R.C. - A.D. 300. During this period, <br />small nomadic groups occupied rockshelters and caves, presumably subsisting <br />by hunting small game and foraging. Representative projectile points in- <br />clude Pinto, Hanna, and Elko corner-notched types (Creasman et al. 1977: <br />53; Burney 1979: 6). Frison et al. (1974: 24) give us broad categories <br />into which late Archaic projectile points may be assembled: small corner- <br />notched points, some strongly barbed, manufactured 3000-1000 B.P.; and <br />small side-notched points, manufactured for the last 1000 years B.P., <br />those with basal notching appearing ca. 500 years ago. Conchoidal pottery <br />appeared about 1000 B.P. The western variety is characteristically a <br />brushed plainware attributed to Athapaskans, while the eastern variety is <br />cord-marked and is associated with the Plains Woodland tradition. Later <br />sites in the west yield flat-bottomed "intermountain ware" of probable <br />Shoshonean derivation. <br /> <br />15 <br />