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1986 Map of Castle Mountain

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

USGS Topo · Published 1986

About this map

The high-altitude peaks of the Absaroka - Beartooth Wilderness dominate this survey, capturing a landscape defined by permanent ice and sharp granite summits at the border of Montana and Wyoming. Large ice bodies such as the Sundance Glacier, Snowbank Glacier, and Castle Rock Glacier are clearly delineated near the massifs of Castle Mountain and Castle Rock Mountain. The hydrological pattern is remarkably dense for such an environment, with dozens of alpine lakes including Big Park Lake, Desolation Lake, and Snowbank Lake feeding drainages like Rosebud Creek and Whirlpool Creek.

Evidence of early access is found in the Impasse Trail and several falls, including Charlie Falls and Lake at Falls. The map serves as a record of administrative boundaries, marking where the Custer National Forest, Gallatin National Forest, and Shoshone National Forest converge. This 1986 provisional edition provides critical detail for researchers tracing the historical extent of these glaciers and the naming of remote landmarks like Castle Rock Spire and Navajo Tarn.