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1960 Map of Twin Bridges

Name: 1960 Topographic Map of Twin Bridges
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

Twin Bridges serves as the focal point of this survey, situated at the confluence where the Big Hole River, Beaverhead River, and Ruby River converge to form the Jefferson River. The landscape transitions from these vital river bottoms to the timbered heights of the Deerlodge National Forest and the Highland Mountains. Settlement patterns are defined by the Northern Pacific railroad corridor, which links the town to the mining district around Silver Star.

Hardrock mining history is evident across the Ironrod Hills and western slopes, with numerous named claims including the Shamrock Mine, Victoria Mine, and Big Bonanza Mine. Rural life is anchored by landmarks like the Pageville Sch and the Hells Canyon Guard Station, while the complex network of irrigation ditches, such as the Parrot Ditch, illustrates the intensive agricultural development of the Madison County valleys during the mid-20th century.