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1965 Map of Morony Dam

Name: 1965 Topographic Map of Morony Dam
Creator: U.S. Geological Survey
Published: 1994
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1994

About this map

Morony Dam and Ryan Dam dominate this stretch of the Missouri River northeast of Great Falls, where industrial infrastructure meets the sharp coulees of central Montana. The map documents the extensive hydro-electric operations of the mid-20th century, including the Big Falls Powerhouse and associated facilities like the Gaging Sta and multiple Storage Bins. The landscape is a mix of high prairie and deep river breaks, defined by features such as The Big Eddy and the junction with Belt Creek.

Settlement patterns appear sparse, centered on the small siding of Portage and the community of Salem. Transportation history is visible through the Old Railroad Grade that skirts the southern portion of the quadrangle. Local landmarks like Sulphur Spring and several named coulees, including Portage Coulee and Rogers Coulee, provide specific points of interest for genealogists and local historians tracing the development of this river-driven economy.