This document reports the results of the excavation of 18 sites and the testing of 31 sites within the project area of Quail Creek Reservoir in central Washington County, Utah. The greatest number of sites are pf the Western Anasazi cultural affiliation representing occupations in the period between about A.D. 600 and A.D. 1150, or perhaps as late as A.D. 1200. In addition to these sites, a single Archaic site was tested to yield a date of A.D. 80. At the same time, a total of 17 post-Anasazi Paiute sites representing activity between the thirteenth and the nineteenth centuries were also examined.