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1968 Map of Hall Coulee

Name: 1968 Topographic Map of Hall Coulee
Creator: U.S. Geological Survey
Published: 1972
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1972

About this map

The Blackfeet Indian Reservation dominates this northern landscape, where the international boundary between the United States and Canada meets the provincial line of Alberta and Montana. This 1968 field check reveals a region defined by critical water management infrastructure and high-latitude prairie terrain. The engineering of the Saint Mary Canal is clearly visible as it traverses the coulees, supported by a significant Siphon and a network of Pipelines that redirect water across the continental divide.

The physical geography is marked by the winding course of the North Fork Milk River and the broad expanses of Freezeout Flat. Local resource extraction is indicated by scattered Gravel Pits, while the presence of Willow Creek and Squaw Creek shows the natural drainage patterns that the irrigation works were designed to supplement. Fine red dashed lines denote selected fence lines, providing a rare look at the division of rangeland on the reservation during the late 1960s.