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2017 Map of Lookout Pass

Name: 2017 Topographic Map of Lookout Pass
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Lookout Pass and the surrounding Bitterroot Mountains define this critical crossing between Idaho and Montana, where transportation routes have historically converged. This 2017 survey shows the modern footprint of travel through the rugged terrain, including the path of the Old Yellowstone Trl and the development of the Hiawatha Rail-Trail. Small settlements like Sohon, Borax, and Roland are plotted along these mountain corridors, reflecting the enduring legacy of the railroad and mining era in the Bitterroots.

The landscape is marked by substantial engineering feats like the Saint Paul Pass-Tunnel near East Portal, which illustrates the industrial effort required to navigate the St Joe Divide NRT. Water sources including the Saint Regis River and the S Fork Coeur d'Alene River flow through gulches named for prospectors and local lore, such as Klondike Gulch and Lucky Swede Gulch, grounding the map in its regional history of resource extraction and mountain passage.