2021 Map of Little Coleman Canyon

About this map

Mosquito Mountain dominates this remote high-desert borderland where Nevada meets Oregon. The landscape is defined by the sharp transition from elevated peaks to deep drainage systems like Coleman Canyon and Little Coleman Canyon. Human activity in this arid environment is tied closely to water management, centered on Coleman Reservoir and the perennial Glenco Spring. The network of unpaved tracks, including Coleman Ranch Rd and Separate Rd, follows the natural contours of the land, connecting the basins of Coleman Valley and Mosquito Valley. This 2021 survey illustrates a sparse, ranching-oriented infrastructure typical of the Great Basin frontier, where named creeks like Coleman Cr and Horse Cr provide the essential lifelines for the region's land use.