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1989 Map of Mac Donald Pass

Name: 1989 Topographic Map of Mac Donald Pass
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

Frontier Town sits along the Continental Divide in this late-century survey of the high mountain passage between Powell and Lewis and Clark Counties. The landscape is defined by its transit history and extractive roots, featuring the prominent MacDonald Pass and Priest Pass. These corridors have long served as vital crossings for both infrastructure and industry, evidenced by the numerous Prospect locations and mining operations like the Third Term Mine found tucked into the gulches.

Water flows away from the divide through a complex network of drainages including MacDonald Creek, Tenmile Creek, and Dog Creek. While much of the area is part of the Helena National Forest, small pockets of development appear at Forest Heights and Camp Thunderbird. The presence of several Radio Towers and a large Transmission Line underscores the importance of these summits for regional communication and power distribution.