NO. 2 MISSOURI VALLEY DEVELOPMENT PROGRAM — WEDEL 3 1 



Glendo Reservoir. — This unit, where preconstruction work is Hear- 

 ing completion, is located in northern Platte County, Wyo., approxi- 

 mately 45 miles west of the Nebraska boundary. The dam, 90 feet 

 high, is to be on the North Platte River, about 7 miles southeast of 

 the town of Glendo ; the reservoir will have a length of some 12 miles 

 and a maximum surface area of approximately 3,750 acres (elevation 

 4,590 feet, m.s.L). The terrain may be described briefly as a rolling 

 to hilly grass-covered plain, with some deciduous trees on the valley 

 bottoms and a few small conifers on the hills and bluffs along the 

 stream. The extensive and important aboriginal quartzite quarries 

 known as the Spanish Diggings lie a few miles to the northeast of the 

 proposed reservoir area. 



Forty-three localities of archeological interest have been recorded 

 in two seasons of survey at Glendo. Most of these are on terraces 

 or low. bluffs near the river or its tributaries. About half are camp 

 sites, characterized by clusters of fire-blackened stones and areas of 

 occupational debris, such as chips, flakes, and occasional stone artifacts. 

 Some are on the present surface; others lie buried beneath varying 

 depths of wind-blown soils, and have been exposed by gullying or 

 stream action. In general, they show little depth of refuse and suggest 

 short periods of occupancy. 



Six stratified sites are known. The most promising lie outside the 

 future pool area, but close enough to be subject to extensive vandalism 

 once reservoir construction gets under way. At one, cultural remains 

 have been found to a depth of approximately 9 feet; they include 

 pottery fragments from near the surface and a Folsom-like unfluted 

 point from one of the buried strata. Another such site within the 

 future pool area, 48PL13, showed three successive levels of occupa- 

 tion, at depths of 14, 30, and 60 inches below the surface. The limited 

 artifact collections from these stratified sites strongly suggest cultural 

 variation from level to level, but the quantity of material is insufficient 

 to permit definition of the several complexes apparently represented. 

 The importance of such locations lies in the clues they may give to 

 the sequential arrangement of the numerous other sites in the area 

 where only single occupations are indicated. 



Six groups of boulder circles representing tipi rings were also 

 located ; they lie chiefly on hilltops, bluffs, and mesas back from the 

 streams. Very little detritus occurs in association, and their age and 

 relationships remain problematical. No caves or rock shelters are 

 known in the reservoir area, though such sites occur in the vicinity. 

 Two quarries were located, both on the hills above pool level. There 

 appear to be no pictograph or petroglyph groups in the area. At one 



