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1988 Map of Penrose Peak

Name: 1988 Topographic Map of Penrose Peak
Creator: U.S. Geological Survey
Published: 1988
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1988

About this map

Lolo National Forest dominates this mountain landscape along the border of Sanders and Mineral counties in the late 1980s. The topography is defined by the prominent C C Divide, which serves as a major hydrologic boundary separating the drainage basins of Cherry Creek and Twelvemile Creek. High elevation landmarks such as Penrose Peak and Cherry Peak tower over a network of seasonal streams, including Blackburn Creek and Flat Rock Creek.

An extensive Pack Trail system provides the primary means of movement through this interior wilderness, linking remote features like Acorn Lake and Greenwood Hill. A lone Transmission Line cutting through the southwestern sector represents the only major infrastructure in an otherwise primitive terrain. This survey reflects the character of Montana's national forest lands before significant modern development, emphasizing natural drainages like Tamarack Gulch and Mineral Mountain Creek.