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1956 Map of Twin Peaks

Name: 1956 Topographic Map of Twin Peaks
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

Challis National Forest dominates this mid-century topographic survey, revealing a high-altitude wilderness defined by intricate drainage systems and alpine basins. The terrain is anchored by significant summits like White Valley Mtn and White Mtn, with a network of high lakes including White Goat Lake and Eddy Lake feeding the headwaters of Camas Creek and Morgan Creek.

A White Goat Lookout stands watch over the northern ridges, while evidence of early resource exploration appears in the form of unnamed Prospects near Slab Barn Lake. The eastern edge of the map shows the transition into more accessible lands near Challis Creek, where a Gaging Sta and Mosquito Flat Reservoir indicate the ongoing management of water resources in this part of Custer and Lemhi counties. The survey captures the landscape as it existed in 1956, just before the widespread modernization of many backcountry access points.