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1986 Map of Pinnacle Mountain

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

USGS Topo · Published 1986

About this map

Absaroka Beartooth Wilderness defines the high-altitude landscape of this 1980s Montana survey, where the boundaries of Gallatin National Forest and Custer National Forest converge. The topography is dominated by alpine features and glacial remnants, including a sprawling high-altitude Plateau and numerous remote basins such as Horseshoe Basin. Drainage patterns are complex, with the North Fork, Middle Fork, and South Fork of the Stillwater River system carving through the peaks.

Water bodies like Lake of the Woods, Wildcat Lakes, and the uniquely named Favonius Lake are scattered across the high country, linked by seasonal drainages like Wounded Man Creek. This map captures a pristine wilderness environment before the modern digital era, recording specific natural landmarks such as Pinnacle Mountain and Timberline Mountain that serve as vital reference points for backcountry navigation and environmental study in the Montana Rockies.