2024 Map of Summit Reservoir

About this map

The high desert of the Mount Bennett Hills and Black Butte Hills defines this portion of the Snake River Plain at the boundary of Camas and Lincoln Counties. A sophisticated network of water management features dominates the landscape, with dozens of named impoundments including Summit Reservoir, Granite Butte Reservoir, and Little Magic Reservoir supporting the region's agricultural and ranching needs. The terrain is marked by distinctive volcanic and topographical features such as Black Butte and the Crater Reservoir, revealing the geological character of the area. Transportation is limited to functional routes like Magic Dam Rd and Cottonwoods Rd, which connect these remote water sources. For the researcher, the map provides a precise inventory of localized water rights and improvements, from Tom Gooding Spring to curiously named catchments like Flat Tire Reservoir and Chokecherry Reservoir.