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1970 Map of Benchmark, 1973 Print
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1970 Map of Benchmark

USGS Topo · Published 1973

About this map

The Sun River South Fork carves a deep valley through the wilderness of the Lewis and Clark National Forest in this 1970 survey. This area serves as a critical junction for forest management and back-country access, anchored by the Benchmark Work Center and the Benchmark Airfield near the confluence of Straight Creek and Wood Creek. The geography is defined by the Continental Divide, which snakes through the high country past Sugarloaf Mountain and Observation Pass.

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Map Details

Date Portrayed1970
Date Published1973
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain