2014 Map of Sourdough Spring

About this map

Sourdough Mtn and Grassy Mtn anchor this high-desert landscape in Malheur County, where the management of water is the primary footprint of human activity. The map reveals a network of isolated springs and man-made impoundments critical for ranching, including Sourdough Spring, Lower Sourdough Spring, and Poison Spring Reservoir. Topographical features like Sourdough Gulch, Basin Gulch, and the deep cut of Wildcat Canyon illustrate the complex drainage patterns feeding into Hoodoo Cr. The infrastructure of the era is represented by unpaved routes such as Twin Springs Rd and Rock Canyon Rd, which connect these remote resources. Notable landmarks such as Negro Rock and the seasonal Freezeout Lake provide distinct navigational points in an area defined by its arid, high-elevation character.