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1986 Map of Green Ashley Gulch

Name: 1986 Topographic Map of Green Ashley Gulch
Creator: U.S. Geological Survey
Published: 1988
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1988

About this map

The Big Snowy Mountains dominate this 1980s landscape, where the southern slopes of the range transition into the drainage basins of Golden Valley County. This terrain is defined by a complex network of canyons and coulees, including Horsethief Canyon and Bad Canyon, which channel seasonal water from high peaks like Lost Peak and Baldy. Much of the northern half is protected within the Lewis and Clark National Forest, preserving a rugged topography that remains largely undeveloped.

Water sources are the primary landmarks for navigation and land use in this arid region, as seen with the numerous identified Springs and the irrigation infrastructure of Ditches and Wells. Named features like Wrzesinski Coulee and Huffman Gulch suggest the influence of early homesteading and ranching families who managed these drainages. Lower-elevation watercourses like Swimming Woman Creek and Merrills Creek serve as the lifeblood for the valley below, illustrating the critical relationship between the mountain snowpack and local agriculture.