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2011 Map of Threemile Reservoir

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

USGS Topo · Published 2011

About this map

Milk River meanders across the northern plains of Blaine County, defining a landscape shaped by early 21st-century water management. The irrigation infrastructure is extensive, featuring Milk River Canal A, North Canal, and Main Canal A, which channel water across the prairie to support local agriculture. This network is punctuated by several significant water works, including the Fort Belknap Number 37 Dam, Fort Belknap Number 38 Dam, and Fort Belknap Number 39 Dam, reflecting the coordinated effort to manage seasonal flows in this part of the Agency District.

Sacred Heart Cemetery sits along a primary road corridor, providing a localized point of interest for genealogists researching family ties to the area. To the east, the Threemile Reservoir is held by the Three Mile Reservoir Dam, where Threemile Creek and Spring Creek converge. The southern reaches of the map are defined by the wide drainage of White Bear Creek, illustrating the complex system of natural waterways and man-made canals that sustain this Montana landscape.