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1899 Map of Ishawooa

Name: 1899 Topographic Map of Ishawooa
Creator: U.S. Geological Survey
Published: 1932
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1932

About this map

Absaroka Range peaks dominate this late nineteenth-century survey, which reveals the high-altitude topography of the eastern boundary of Yellowstone National Park. Mapped by Frank Tweedy, the terrain is defined by dramatic elevations and deep drainage basins, including the Trident Plateau and Thorofare Plateau. Notable landmarks such as Ishawooa Cone and Kingfisher Peak punctuate the landscape, while the Stinkingwater Mining Region in the southeast corner indicates the early prospecting and mineral interests that drew surveyors to this portion of the Shoshone National Forest.

The hydrography of the region is centered on the forks of the Shoshone, with the North Fork Shoshone River and South Fork Shoshone River carving routes through the mountains. Passages like Ishawooa Pass provided vital transit points across the Wapiti Ridge, connecting the isolated basins of Ishawooa Creek and Open Creek. The map serves as a record of the raw wilderness before modern infrastructure, marked by descriptive labels like Clouds Home and Fortress Mt.