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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 Piedras Blancas Point dominates this 1917 coastal survey, where the terrestrial world meets the vast Pacific Ocean. Along this remote stretch of San Luis Obispo County, the landscape is defined by dramatic sea stacks such as Harlech Castle Rock and La Cruz Rock. Inland, the terrain rises sharply toward Pine Top Mtn, cut by numerous drainage systems including Arroyo de la Cruz and Arroyo de los Chinos. The presence of the Washington School near the coast indicates a small, established community serving the families of lighthouse keepers and local ranchers during this era. A lighthouse, marked simply as LH, stands as a critical navigational sentinel on the point, anchoring a maritime corridor that saw significant naval and merchant activity in the years following the Great War.

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Map Details

Date Portrayed1919
Date Published1919
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16.6 x 19.8 inches

Editions of this 1919 Piedras Blancas Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain