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1948 Map of Glenns Ferry

Name: 1948 Topographic Map of Glenns Ferry
Creator: U.S. Geological Survey
Published: 1966
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1966

About this map

Oregon Trail (Main Line) routes and the river crossings of the late 1940s dominate this landscape along the Snake River. The survey documents a critical junction of Western migration and modern infrastructure, where the Union Pacific railroad and early highways parallel the historic wagon paths. Significant river features include Three Island Crossing and the Medbury Ferry (Aband.) near Hammett, illustrating the evolution of transit across the water.

Industrial and agricultural development is evident through the irrigation network of Ditch lines, Flumes, and a Siphon. Beyond the valley floor, the terrain transitions into the high desert plateaus of Owyhee and Elmore counties, marked by deep incisions like Deadman Canyon and Pot Hole Canyon. Local landmarks such as the McGuinness Ranch, a Historic Marker, and Deadman Falls Dam provide specific points of interest for genealogists and local historians tracing the development of this river-front corridor.