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2011 Map of Lemhi Pass

Name: 2011 Topographic Map of Lemhi Pass
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

Lemhi Pass marks a critical saddle on the Continental Divide, where historical westward routes meet the rugged high country of the Bitterroot Range. This 2011 survey details a landscape defined by its mining heritage and high-elevation watercourses, featuring the Copper Queen Mine and the Last Chance Number One Mine. The geographic prominence of the area is underscored by the Sacajawea Memorial Camp, which commemorates the Lewis and Clark expedition's traverse of this terrain.

Drainage systems carve the mountain slopes in every direction, from the headwaters of Agency Creek flowing west to the branching tributaries of Frying Pan Creek and Trail Creek to the east. Remote outposts like Selway Ranch are connected by seasonal routes such as Everson Creek Rd and Frying Pan Rd, reflecting a landscape that remains sparsely settled and focused on ranching and resource extraction.