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1980 Map of Trefry Canyon, 1981 Print
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1980 Map of Trefry Canyon

USGS Topo · Published 1981

About this map

The Columbia River carves a dramatic bend through this portion of Washington, where the Colville Indian Reservation boundary follows the mid-channel of Rufus Woods Lake. The terrain is characterized by a series of high plateaus and deep drainage cuts, most notably Trefry Canyon and Henderson Canyon. To the east, the small settlement of Del Rio and the Delrio Grange Hall represent the area's agricultural hub, surrounded by family-named landmarks like Pike Spring and Brazel Spring.

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Map Details

Date Portrayed1980
Date Published1981
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.7 inches

Editions of this 1980 Trefry Canyon Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Okanogan County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain