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1987 Map of Grassy Mountain

Name: 1987 Topographic Map of Grassy Mountain
Creator: U.S. Geological Survey
Published: 1987
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1987

About this map

Grassy Mountain dominates the central landscape of this Montana survey, situated within the sprawling expanse of the Gallatin National Forest. The map documents a complex drainage system defining the high country along the Gallatin and Park County line during the 1980s. A network of primitive 4WD routes provides the only vehicular access through these drainages, connecting high points like Bishop Park with the numerous creek valleys below.

The hydrologic patterns are particularly dense, featuring a series of named tributaries such as Brackett Creek, Skunk Creek, and School Gulch Creek. This 1987 provisional edition serves as a record of the wilderness boundary and the topographic relief of the region before modern digital mapping, preserving the specific nomenclature of local landmarks like White Creek and Stone Creek. The absence of developed townsites highlights the area's role as protected forest land, primarily used for recreation and resource management.