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2020 Map of Thompson Pass

Name: 2020 Topographic Map of Thompson Pass
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

The Idaho-Montana State Line bisects this mountainous terrain, marking the high-altitude divide between Shoshone County and Sanders County. The landscape is dominated by the Coeur d'Alene Mountains, where several critical mountain passes historically facilitated travel between the mining districts of Idaho and the plains of Montana. Key crossings like Thompson Pass and Glidden Pass are charted alongside Burke Summit and Cooper Pass, illustrating the rugged transportation network of the Bitterroot Range.

Water systems define the drainage of these peaks, with the headwaters of the Little North Fork South Fork Coeur d'Alene River and Canyon Creek flowing westward. High alpine water bodies including Revett Lake, Pear Lake, and Blossom Lakes are prominent features. The map also delineates the overlapping boundaries of three major protected areas: the Kaniksu National Forest, Coeur d'Alene National Forest, and Lolo National Forest.