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2020 Map of Blue Mountain

Name: 2020 Topographic Map of Blue Mountain
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

The Lolo National Forest dominates this mountain landscape, where the Grave Creek Range and the summit of Blue Mtn rise above a complex network of drainages and gulches. The terrain is characterized by steep ridges and deep valleys, including Black Mtn in the north and several named canyons like Schoolhouse Gulch and Chickaman Gulch to the south. Human activity and access are defined by a mix of primitive trails and established roads, such as Obrien Creek Rd and the Jeep Trl, which navigate the rugged topography.

Water management is evident in the northeast corner where the Big Flat Ditch runs parallel to the Clark Fork river, indicating the irrigation history of the lower elevations. The map also captures several family-named or descriptive landmarks, from Anderson Gulch near the southern boundary to the various forks of Sleeman Cr, providing a detailed look at the rural geography and land use patterns within this portion of Missoula County.