2011 Map of Shumway Reservoir

About this map

Shumway Ranch serves as a primary point of human activity in this high-desert portion of Malheur County, where water management is the defining characteristic of the landscape. The reliance on seasonal catchments is evident in the numerous small reservoirs scattered across the terrain, including Shumway Reservoir, held by Shumway Dam, and the Arrien Reservoir. These features, along with names like Trespass Reservoir and Caterpillar Butte Reservoir, illustrate a sophisticated network of remote livestock watering points and irrigation infrastructure.