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historical topo map of Okanogan County, WA in 1920

1920 Map of Slate Pass

USGS Topo · Published 1920

This historical map portrays the area of Slate Pass in 1920, primarily covering Okanogan County as well as portions of Whatcom County, Skagit County, and Chelan County. Featuring a scale of 1:125000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Slate Pass region at the time. Published in 1920, it is the sole known edition of this map.

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Map Details

Date Portrayed1920
Date Published1920
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:125000
Physical Dimensions16.77 x 21.62 inches

Editions of this 1920 Slate Pass Map

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

Historical Maps of Okanogan County Through Time

178 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain