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1990 Map of O'Brien
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1990 Map of O'Brien

USGS Topo · Published 1990

About this map

Shasta Lake dominates this 1990 survey, showing the complex interaction of the Mc Cloud River Arm, Pit River Arm, and Salt Creek Inlet. The landscape is a mix of recreational development and industrial remnants, notably the Shasta Iron Mine situated near the waters of the Pit River Arm. The settlement of O'Brien sits as a central point of land-based access, flanked by O'Brien Mountain and numerous inlets like Halfway Cove.

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Map Details

Date Portrayed1990
Date Published1990
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 26.7 inches

Editions of this 1990 O'Brien Map

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

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain