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2013 Map of Donkey Creek

Name: 2013 Topographic Map of Donkey Creek
Creator: U.S. Geological Survey
Published: 2013
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2013

About this map

Summit Ranch sits at the center of this high-altitude landscape in the Custer County backcountry, where the Lemhi Range and Donkey Hills dominate the topography. This 2013 survey illustrates a complex network of seasonal drainages and springs vital to ranching in the arid high country, including Graves Spring and the headwaters of Goldburg Cr. The vast eastern portion of the map is managed as part of the Challis National Forest, defined by significant elevation changes from Big Gulch to the canyon walls of Cooney Canyon.

Evidence of human movement through this high basin is found along Pahsimeroi Rd and Goldburg Rd, which follow the natural contours of the valley floors. Water management is central to the area's utility, marked by the presence of Summit Reservoir and Summit Cr. The land remains largely defined by its original public land survey system divisions, with sections clearly marked across the high-desert terrain.