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1919 Map of Piedras Blancas
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1919 Map of Piedras Blancas

USGS Topo · Published 1919

About this map

The rugged shoreline of San Luis Obispo County is defined by prominent coastal landmarks in this 1917 survey, most notably the Lh at Piedras Blancas Point. This maritime orientation is reinforced by distinctive offshore features such as Harlech Castle Rock, Breaker Pt, and La Cruz Rock. The map illustrates the coastal interface where steep drainages like Arroyo de la Cruz and Arroyo de los Chinos meet the Pacific Ocean, cutting through the coastal terrace from the interior heights of Pine Top Mtn.

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Map Details

Date Portrayed1919
Date Published1919
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16.49 x 19.97 inches

Editions of this 1919 Piedras Blancas Map

Historical Maps of San Luis Obispo County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain