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1968 Map of Gannett Peak

Name: 1968 Topographic Map of Gannett Peak
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

Gannett Peak dominates this high-altitude landscape along the Continental Divide, where the boundaries of Sublette and Fremont counties meet. This 1968 field-checked survey documents one of the most significant glacial systems in the American West, featuring the expansive Mammoth Glacier, Dinwoody Glacier, and Gannett Glacier. The terrain is a complex network of ice and granite, with numerous named summits such as Mount Woodrow Wilson, The Sphinx, and Bastion Peak framing the deep basins of the Bridger Wilderness and Shoshone National Forest.

Access to this alpine environment is traced via the Highline Trail, which skirts high-elevation water bodies like Summit Lake and Peak Lake. The map provides specific detail on technical mountaineering features, including Knapsack Col, Glacier Pass, and the Gooseneck Pinnacle. The intricate drainage patterns of Pixley Creek and the headwaters of the Green River illustrate the hydrology of the Wind River Range before late-twentieth-century glacial recession.