2013 Map of Summit Reservoir

About this map

Mount Bennett Hills and the surrounding volcanic plateau define this high-desert landscape along the border of Camas and Lincoln counties. The terrain is characterized by a high density of small-scale water management features, including dozens of earthen impoundments like Summit Reservoir, Granite Butte Reservoir, and Shoshone Reservoir. These basins, often named for local figures or topography such as Daves Reservoir or Cirque Reservoir, imply a history of seasonal grazing and water security in a semi-arid environment. The presence of Black Butte and the Black Butte Hills in the southwest corner signals the region's geological transition toward the lava-scarred plains. While primary roads like Cottonwoods Rd provide access in the east, the interior is dominated by natural springs such as Tom Gooding Spring and Marsh Spring, which likely served as critical landmarks for early travelers and ranchers crossing this elevated terrain.