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1970 Map of Trap Mountain

Name: 1970 Topographic Map of Trap Mountain
Creator: U.S. Geological Survey
Published: 1985
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1985

About this map

The Continental Divide snake through this high-altitude landscape, marking the boundary between the Flathead National Forest and the Lewis and Clark National Forest. This 1970 survey records a transition point in the Bob Marshall Wilderness, where the Sun River Game Preserve meets the crest of the Rockies. The geography is defined by prominent peaks like Trap Mountain and Twin Peaks, while the lowlands of the Danaher Basin provide a natural corridor for the Danaher Creek.

Resource management and backcountry access are highlighted by the presence of the Basin Creek Guard Station and an extensive network of pack trails, including the Jumbo Lookout Trail. These routes follow drainages like Ahorn Creek and Ayres Creek, serving as the primary infrastructure for this protected wilderness. The map captures the intersection of Powell and Lewis and Clark counties in a period before modern technological changes reached these remote mountain reaches.