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1927 Map of Piedras Blancas
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1927 Map of Piedras Blancas

USGS Topo · Published 1927

About this map

Piedras Blancas Point anchors this coastal survey, serving as a critical navigational landmark on the California shore during the early twentieth century. The terrain is defined by short, steep drainages such as Arroyo de la Cruz and Arroyo del Corral that cut through the foothills of Pine Top Mtn before reaching the Pacific Ocean. This 1917 data, published in the late 1920s, shows the rural isolation of the San Luis Obispo coast before modern highway development.

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Map Details

Date Portrayed1927
Date Published1927
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16.6 x 19.8 inches

Editions of this 1927 Piedras Blancas Map

Historical Maps of San Luis Obispo County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain