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1989 Map of Bohannon Spring

Name: 1989 Topographic Map of Bohannon Spring
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

The Beaverhead Mountains define this high-altitude landscape along the Continental Divide, where the border between Idaho and Montana meets the deep wilderness of the Salmon National Forest. This 1989 provisional survey documents a rugged hydraulic environment punctuated by numerous named water sources, including Chet Rowe Spring, Alberson Spring, and Bohannon Spring. These springs serve as the headwaters for a complex drainage system featuring Bohannon Creek, Geertson Creek, and Wimpey Creek.

Evidence of resource extraction is scattered throughout the drainages, indicated by various Prospects and Tailings that suggest a history of mineral exploration in these canyons. Transportation is limited to a network of 4WD tracks, emphasizing the area's isolation during the late twentieth century. High-country landmarks such as Center Mountain and glacial features like Berry Lake and Hamby Lake provide clear reference points for those tracing the topographic history of Lemhi County.