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1958 Map of Butte

Name: 1958 Topographic Map of Butte
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

The Continental Divide zigzags across this landscape, separating the headwaters of the Missouri River from the Clark Fork drainage. Mining and industrial activity are central to this mid-century view, anchored by the heavy concentrations of rail and resource extraction around Butte and Anaconda. Transport corridors follow the river valleys, with the Northern Pacific and the Chicago Milwaukee St Paul and Pacific railroads threading through the mountains alongside U.S. 10.

Smaller settlements and rural outposts like Potomac Post Office, Helmville, and Garrison provide points of interest for genealogists tracing family roots in the high country. The map illustrates the dominance of public lands during this era, showing the borders of the Lolo National Forest and Deerlodge National Forest. Significant water features like Georgetown Lake and Silver Lake contrast with the industrial footprints of many unnamed mines and quarries dotting the ranges.