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1971 Map of Big Maria Mts SW, 1980 Print
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1971 Map of Big Maria Mts SW

USGS Topo · Published 1980

About this map

The Big Maria Mountains dominate this arid Riverside County landscape, characterized by steep desert slopes and a network of mining exploration sites. In the early 1970s, the terrain was primarily used for mineral extraction and transit, evidenced by numerous prospects, scattered Mines, and a Gravel Pit located along the flats. The southeastern portion of the map shows the transition from the rugged highlands down toward the Colorado River valley, though the map remains focused on the high-elevation peaks and the Black Hill landmark.

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Map Details

Date Portrayed1971
Date Published1980
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22 x 26.8 inches

Editions of this 1971 Big Maria Mts SW Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain