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I report on an analysis of materials from several Nebraska phase sites, 25SY31 (i.e., Patterson site), 25RH69, and 25RH70 to better understand the occupation history of these sites. This study focuses on retouched flakes and the interpretation of them in terms of indices of reduction. The significance of this work lies in the production of a more nuanced understanding of structure use and abandonment within the Nebraska phase. The Nebraska phase occupation histories may allow for a better understanding of land use dynamics on the Central Plains.