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1981 Map of Mount Bonneville

Name: 1981 Topographic Map of Mount Bonneville
Creator: U.S. Geological Survey
Published: 1982
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1982

About this map

The Continental Divide defines the crest of this high-altitude landscape, separating the headwaters of the East Fork River from the drainages of the Shoshone National Forest. This 1981 survey of the Wind River Range shows the alpine geography of the Bridger Wilderness at a time when its footpaths were already well-established. Glacial activity is evident in features like Hooker Glacier tucked beneath Mount Hooker, and the numerous tarns including Grave Lake and the Bonneville Lakes.

Strategic crossings such as Hailey Pass and Washakie Pass provide the only breaks in the granite ridges for those following the Highline Trail or Fremont Trail. The boundary between Fremont and Sublette counties follows the divide, emphasizing how the physical topography dictated the political lines of Wyoming. This map serves as a primary record for tracing the routes of early mountaineers and the management of these protected lands before modern digital mapping.