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1986 Map of Obsidian Cliff

Name: 1986 Topographic Map of Obsidian Cliff
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Yellowstone National Park reveals its geothermal and geological complexity in this mid-1980s study of the Obsidian Cliff area. The landscape is defined by its hydrothermal features, ranging from the Semi-Centennial Geyser and Amphitheater Springs to the distinctive bubbling of Frying Pan Spring. These features are concentrated near Obsidian Creek and the notable heights of Roaring Mountain.

Water and terrain dominate the survey, showcasing the drainage patterns of Willow Creek and the steep descent of Obsidian Canyon. Significant landmarks such as The Landmark and Horseshoe Hill provide orientation across the thermal basins. The map also records numerous remote water bodies including Lake of the Woods, Obsidian Lake, and Lemonade Lake, illustrating the park's diverse ecosystem of springs, ponds, and creeks as they were documented during the field checks of the early 1980s.