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1986 Map of Mary Lake

Name: 1986 Topographic Map of Mary Lake
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 terrain is defined by the high elevations of the Central Plateau and the prominent heights of Mary Mountain. In the mid-1980s, this area remained largely undeveloped, with movement through the landscape dictated by a Pack Trail that follows the course of Nez Perce Creek. The drainage network is complex, with numerous tributaries including Cowan Creek, Magpie Creek, and Spruce Creek carving through the high country.

A notable geological feature is the presence of Hot Springs along the lower reaches of Nez Perce Creek, indicating the active geothermal nature of this specific portion of the park. The map also documents the remote Mary Lake at the foot of its namesake mountain and the administrative boundary line shared by Park and Teton counties, providing a clear record of the backcountry geography before more modern developments.