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1997 Map of Bannock Pass

Name: 1997 Topographic Map of Bannock Pass
Creator: U.S. Geological Survey
Published: 2002
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2002

About this map

The high alpine border between Montana and Idaho is defined here by the Continental Divide and Grizzly Divide, where the Beaverhead National Forest meets the Salmon National Forest. This remote corridor is marked by the crossing at Bannock Pass, a location of significant transit for the Nez Perce National Historic Trail and the Leadore Trail.

Resource extraction and early surveying are evident throughout the drainage basins of Black Canyon Creek and Horse Prairie Creek. Numerous mining sites, including the Digmore Mine and various prospects, suggest a history of exploration across the Lemhi and Beaverhead county lines. Natural water sources like Irish Boy Springs, Wagonbox Spring, and Soapstone Spring highlight the essential landmarks for those navigating these high-elevation ridges.