Lakes in Washington County, Colorado and Surrounding Areas   1. Prewitt Reservoir        I think that this is a great family lake.... OTHER COUNTIES NEARBY Cheyenne County Kit Carson County Lincoln County Logan County Morgan County Phillips County Weld County        2. Horse Creek Reservoir, Weld County        3. Milton Lake Reservoir, Weld County Yuma County        4. Bonny Reservoir, Yuma County Sherman County Wallace County Colorado Lakes Unreviewed Lakes in Washington County, Colorado Akron Reservoir Akron-Washington Company Recreation Reservoir Buffalo Creek Reservoir Snyder Lake To submit a review of one of the lakes above please fill out the form below. The name of the lake, (and your own name if you want):