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1948 Map of Glenns Ferry

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

USGS Topo · Published 1948

About this map

Three Island Crossing serves as the focal point of this riverine survey, marking a renowned shallow point where travelers historically breached the Snake River. By the late 1940s, the town of Glenns Ferry had solidified its position as a transportation hub, anchored by the Union Pacific railroad and surrounded by the echoes of westward migration. Traces of the past remain visible in the alignment of the Old Oregon Trail and the King Hill Trail, which parallel the river and the modern infrastructure of the era.

The landscape is deeply etched by water, from the steep descents at Deadman Falls to the drainage of Little Canyon Creek and Alkali Creek. Local landmarks like the Landing Field, the Cem, and a specific Historic Marker near Slick Bridge provide precise points of interest for those studying the mid-century development of Elmore County. The map captures a period when the memory of the pioneer trails was still physically represented alongside the active rail-and-river economy of southern Idaho.