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2017 Map of Brown Pass

Name: 2017 Topographic Map of Brown Pass
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Fort Peck Lake dominates the southern edge of this landscape, its shoreline reaching into Sutherland Creek Bay. The terrain north of the lake is a complex system of drainage and ridges, including the prominent Brown Ridge and Van Hook Ridge. The area is characterized by numerous small-scale water management features such as Half Barrel Detention Reservoir, Prairie Reservoir, and Duck Soup Reservoir, which are vital for supporting local ranching operations in this arid environment.

Evidence of early movement through these breaks is found at Brown Pass and along Roosevelt Coulee. Notable landmarks like Graveyard Hill and Shufeldt Ridge provide orientation within the network of coulees, including Upper Eighth Coulee and Bennett Coulee. This 2017 survey documents the modern state of these remote uplands, showing how seasonal water sources like Needle Spring and Duck Cr continue to define the geography.