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1983 Map of Bullhead Reservoir

Name: 1983 Topographic Map of Bullhead Reservoir
Creator: U.S. Geological Survey
Published: 1983
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1983

About this map

The Bullhead Reservoir and its surrounding drainage systems define this landscape in Valley County, Montana, as it was documented in the late 1970s. The area is characterized by an intricate network of seasonal watercourses and coulees that feed into the larger East Fork Porcupine Creek system. Among these are the descriptively named Hay Coulee, Black Coulee, and Bonnies Coulee, which highlight the importance of water management and natural runoff in this arid region.

Reliable water sources such as Gillman Spring and another unnamed Spring are critical landmarks for both local geography and potential historical land use. The presence of The Pass Fork Porcupine Creek suggests natural travel corridors through the varying elevations. This survey provides a clear look at the topography of the Fort Peck Indian Reservation before many modern developments, showing the foundational relationship between the terrain and its scarce water resources.