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1950 Map of Devils Fence

Name: 1950 Topographic Map of Devils Fence
Creator: U.S. Geological Survey
Published: 1950
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1950

About this map

The high pastures and mineral-rich hills of Jefferson County are captured here during a period of active ranching and mid-century extraction. Centered on the Boulder Valley, the landscape is defined by the transition from the Deer Lodge National Forest and Helena National Forest into the fertile valley bottom. Local religious and social life is anchored by the Boulder Valley Church, while the surrounding territory is dotted with established holdings like the Quaintance Ranch, Doughty Ranch, and Lazy T Ranch.

Industrial activity remains a primary driver of the local economy, evidenced by the Spar Mine (Active) and Ida Mine (Active). The presence of Tailings and various unnamed Mine symbols near Tacoma Park suggest a history of prospecting that continued into the post-war era. This documentation was compiled as part of the Interior Department's program for the development of the Missouri River Basin, reflecting a systematic effort to map the hydrological and geological resources of the Bull Mountain area and its numerous gulches.