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2017 Map of Bohannon Spring

Name: 2017 Topographic Map of Bohannon Spring
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Sacajawea Peaks and the Beaverhead Mountains define this high-altitude landscape along the Montana-Idaho state line. The survey traces the Continental Divide as it winds through the Beaverhead National Forest and Salmon National Forest, marking the boundary between Beaverhead County and Lemhi County. Numerous water sources are documented throughout the drainage basins, including the namesake Bohannon Spring, Chet Rowe Spring, and Albertson Spring.

The presence of Coal Mine Gulch Spring suggests historical resource extraction in an area otherwise dominated by the rugged hydrologic networks of Kirtley Creek and Wimpey Cr. A network of forest roads, such as Bohannon Creek Rd and Kirtly Cr Rd, provides access to these remote reaches. This topography illustrates the complex watershed divide where several forks, including N Fork Kirtley Cr and W Fork Wimpey Cr, originate from the high ridgelines.