1968 Map of Olson Peak, 1971 Print
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1968 Map of Olson Peak

USGS Topo · Published 1971

About this map

The Lolo National Forest and Helena National Forest converge in this high-elevation wilderness, where the Lewis and Clark and Powell County line traverses a complex landscape of drainages and peaks. Significant landmarks like Olson Peak and Bugle Mountain anchor a terrain defined by the headwaters of the North Fork Blackfoot River. The 1960s-era geography reveals a network of primitive transportation routes, including the Main Line Trail (Pack) and the East Fork Trail (Pack), which served as the primary conduits through these protected lands before modern road development. High-country water features such as Twin Lakes and Meadow Lake are nestled among the ridges, feeding numerous drainages like Sourdough Creek and Spaulding Creek. This map is a record of the backcountry infrastructure managed by the U. S. Forest Service during the mid-20th century.


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Map Details

Date Portrayed1968
Date Published1971
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.9 x 26.9 inches

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Source Details

CopyrightPublic Domain