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Resumo

Spring Creek Cave, a single-component, habitation site in the Big Horn Basin near Ten Sleep, Wyoming, yielded an assemblage of stone artifacts diagnostic of the Late Middle Prehistoric period in context with a considerable variety of hitherto undescribed perishable items. Charcoal produced a radiocarbon date of A.D. 225 ± 200. The Spring Creek material considerably amplifies present knowledge of Late Middle period technology and economy in the Northwestern Plains and provides opportunities for comparison of Late Middle period perishable items with similar items in Basketmaker assemblages of the Southwest and in other assemblages from various parts of the Basin-Plateau region.

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