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1951 Map of Helena

Name: 1951 Topographic Map of Helena
Creator: U.S. Geological Survey
Published: 1953
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1953

About this map

Helena and the Trinity River corridor anchor this mid-century look at one of California's most active gold mining districts. The 1951 field check reveals a landscape deeply marked by extraction, from the clustered claims along the river at Idaho Bar and Coopers Bar to hard-rock operations in the high country. Significant lode mining sites like the Enterprise Mine, Yellowstone Mine, and McClaron Mine are located throughout the Trinity National Forest, illustrating the remote nature of these industrial outposts.

The settlement of Dedrick stands as a primary hub for the northern claims, while several former communities are already noted as historical locations, including Canyon City (Site) and Coleridge (Site). The terrain transitions from the river valley up through Backbone Ridge toward the high peaks of the Alps, where alpine features like Mirror Lake and Sawtooth Mtn dominate. This survey captures the region just as the early 20th-century mining boom was yielding to modern forest management and recreation.