Mack Island USGS Two Buttes Reservoir Quad, Wyoming, Topographic Map

Mack Island is an Island in the state of Wyoming (county of Sublette), located at latitude - longitude coordinates (also known as lat-long or GPS coordinates) of N 42.64717 and W -109.83959. Mack Island is shown in the center of the topographic (topo) map, which is sourced from the United States Geographical Survey map USGS Two Buttes Reservoir quad. The nearest major town is Boulder, WY.