O'Brien Reservoir Number 1 USGS Bonny Reservoir South Quad, Colorado, Topographic Map

O'Brien Reservoir Number 1 is a Reservoir in the state of Colorado (county of Yuma), located at latitude - longitude coordinates (also known as lat-long or GPS coordinates) of N 39.61666 and W -102.17047. O'Brien Reservoir Number 1 is shown in the center of the topographic (topo) map, which is sourced from the United States Geographical Survey map USGS Bonny Reservoir South quad. The nearest major town is Hale, CO.