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1959 Map of Pebblestone Shut-In, 1991 Print
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1959 Map of Pebblestone Shut-In

USGS Topo · Published 1991

About this map

Mining operations and rugged coastal ridges define this landscape during the late 1950s, a period when the Nacimiento Res was a central feature of northern San Luis Obispo County. The map reveals an intensive history of extraction throughout the Santa Lucia Range, marked by numerous sites such as the Cambria Mine, Keystone Mine, and Almaden Mine. This concentration of mines, alongside several unnamed prospects, underscores the region's geological significance for quicksilver and other minerals.

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Map Details

Date Portrayed1959
Date Published1991
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 27 inches

Editions of this 1959 Pebblestone Shut-In Map

Historical Maps of Ranchos Del Lago Through Time

287 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain