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1970 Map of Prairie Reef, 1983 Print
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1970 Map of Prairie Reef

USGS Topo · Published 1983

About this map

The Continental Divide defines the western edge of this landscape, marking the high boundary between Flathead Co, Powell Co, and Lewis and Clark Co. This high-altitude backcountry is dominated by the Bob Marshall Wilderness and the Sun River Game Preserve, where the terrain drops sharply from the Chinese Wall and Prairie Reef toward the Sun River valley.

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Map Details

Date Portrayed1970
Date Published1983
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.7 inches

Editions of this 1970 Prairie Reef Map

Historical Maps of Lewis and Clark County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain