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2020 Map of Big Hole Pass

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

USGS Topo · Published 2020

About this map

The Continental Divide serves as the primary geographic and political boundary on this map, separating Salmon National Forest in Idaho from Beaverhead National Forest in Montana. The landscape is defined by the high-elevation traverse of the Continental Divide National Scenic Trail, which snakes along the crest between prominent landmarks like Eagle Mtn and Bitterroot Mtn. This intersection of two states and two national forests highlights a region dedicated to conservation and backcountry recreation.

Surface water drainage patterns are clearly delineated, with Dahlonega Cr and Threemile Cr flowing westward toward the Salmon River basin, while Pioneer Cr and Ruby Cr drain eastward. The map captures the remote crossing at Big Hole Pass 624, where Gibbonsville Rd 624 provides one of the few vehicular access points through the high ridges. Named features like Morgan Jones Lake and Thompson Gulch offer specific points of reference for those studying the drainage and topography of this borderland.