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1955 Map of Opal Mountain, 1971 Print
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1955 Map of Opal Mountain

USGS Topo · Published 1971

About this map

Opal Mountain and Black Mountain rise above a landscape defined by desert hydrology and early ranching efforts in the mid-1950s. The southern portion of the map showcases the geological complexity of the Mud Hills, where Fossil Canyon and Coon Canyon converge near the notable Rainbow Basin. This area is accessed by Fossil Bed Rd, indicating the region's significance for paleontological discovery and geological study.

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Map Details

Date Portrayed1955
Date Published1971
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62500
Physical Dimensions16.6 x 20.8 inches

Editions of this 1955 Opal Mountain Map

Historical Maps of San Bernardino County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain