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2017 Map of Cornwell Reservoir

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

USGS Topo · Published 2017

About this map

Cornwell Reservoir anchors the southern reaches of this Valley County landscape, a vital water source in a region defined by its complex drainage network. The terrain is marked by significant topographic depressions such as Wire Grass Coulee, Mooney Coulee, and Alkali Coulee, which channel seasonal runoff through the plains. Natural water points are scattered throughout the quadrangle, including named perennial sources like Hunt Spring, Burke Spring, and Alkali Spring.

Surface travel in this rural interior is facilitated by historic routes such as Jensen Trl and Cornwell Rd. These tracks provide access to the various forks of Cherry Cr and the winding path of Crooked Cr. The map captures the specialized hydrology and early ranching infrastructure of this section of Montana, where named springs and coulees served as primary landmarks for land navigation and livestock management.