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2023 Map of Sourdough Spring

Name: 2023 Topographic Map of Sourdough Spring
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

Sourdough Spring and its surrounding high-desert terrain dominate this 2023 survey of Malheur County. The landscape is characterized by a sophisticated system of water management essential for arid-land survival, featuring numerous named catchments such as Table Reservoir, Upper Kane Spring Reservoir, and Wildcat Canyon Reservoir. These features, alongside natural springs like Ball Spring and Red Rim Spring, indicate the historical and ongoing importance of water rights and livestock grazing in the region.

Topographical landmarks like the prominent Hoo Doo and the heights of Sourdough Mtn and Grassy Mtn provide a clear view of the rugged basin-and-range geography. The map also traces the winding paths of Hoodoo Creek and Twin Springs Creek, as well as the specialized geography of Negro Rock and the Sourdough Basin. This contemporary record preserves the locations of vital resource points and the primitive road network, including Freezeout Lake Rd, used by those navigating this remote Oregon interior.