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1963 Map of Sourdough Peak

Name: 1963 Topographic Map of Sourdough Peak
Creator: U.S. Geological Survey
Published: 1964
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1964

About this map

Sourdough Peak and Baking Powder Mountain define the high terrain of this portion of the Nez Perce National Forest during the early 1960s. The landscape is characterized by a dense network of watercourses, including Johns Creek and Kentucky Creek, which carve through prominent landforms like Bull Elk Ridge and Blue Ridge. A single Jeep Trail provides the primary means of overland access across these steep slopes, connecting remote points near Snoose Creek and West Fork Little Wing Creek.

Evidence of the region's wilderness character is found in the scattered natural features such as Twin Lakes and several isolated springs. The topography suggests a landscape primarily managed for timber or conservation, with few signs of permanent habitation beyond the forest infrastructure. Notable summits like Square Mountain and Dome Hill serve as key landmarks for navigators and surveyors working within this drainage-heavy territory of central Idaho.