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2011 Map of Trumbo Ranch

Name: 2011 Topographic Map of Trumbo Ranch
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

Trumbo Ranch and the surrounding high plains of Garfield County are defined by a complex network of seasonal drainages and water management features. The northern edge of this territory is shaped by the expansive waters of Fort Peck Lake, where East Cabin Coulee and Snow Creek meet the reservoir. Moving south across the prairie, the landscape is punctuated by numerous stock dams and reservoirs, reflecting the vital importance of water rights and livestock management in this arid stretch of Montana.

Several dam sites named for local ranching families, such as the Engdahl Number 7 Dam and Engdahl Reservoir Number 1 Dam, dot the drainages of Hell Creek and its tributaries. The terrain rises to distinct landmarks like Brownie Butte, while the isolated Trumbo Rd provides the primary overland access through this sparsely populated ranching country. The map detail highlights how the natural flow of Cottonwood Creek and Dry Fork Coulee has been modified by decades of land use and small-scale infrastructure like the Archie Number 1 Dam.