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1948 Map of Lompoc Hills
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1948 Map of Lompoc Hills

USGS Topo · Published 1948

About this map

The Johns Manville Plant stands as a focal point of industrial activity in the La Mission district, marking a period of significant mineral extraction in the hills south of the Santa Ynez River. Numerous Diatomaceous Earth Quarries are etched into the terrain of Vieja De La Purisima and Canada De Salsipuedes, revealing the scale of the diatomite mining operations that dominated the local economy in the late 1940s. These industrial sites are contrasted by the rural landscape to the south, where the Jalama School and Jalama Ranch serve the remote coastal canyons.

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Map Details

Date Portrayed1948
Date Published1948
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 29.2 inches

Editions of this 1948 Lompoc Hills Map

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

Historical Maps of Lompoc Through Time

323 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain