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1906 Map of Blalock Island, 1954 Print
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1906 Map of Blalock Island

USGS Topo · Published 1954

About this map

Columbia River commerce and early irrigation efforts define this 1906 survey of the borderlands between Oregon and Washington. The river is the central artery, dominated by the large Blalock Island and smaller landmasses like Thanksgiving Island. Along the southern bank, the Oregon-Washington Railroad and Navigation Co serves the budding settlement of Irrigon and the landmark at Castle Rock. To the north, the Spokane Portland and Seattle line tracks the base of Paterson Ridge near the town of Paterson.

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Map Details

Date Portrayed1906
Date Published1954
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:125,000
Physical Dimensions16.82 x 20.93 inches

Editions of this 1906 Blalock Island Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain