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1931 Map of Moon Mtn, 1955 Print
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1931 Map of Moon Mtn

USGS Topo · Published 1955

About this map

The Colorado River serves as the primary boundary and lifeline in this early twentieth-century survey of the Arizona-California border. The landscape is dominated by the Dome Rock Mountains and the prominent Moon Mtn, which rise sharply above the La Posa Plain. Much of the western territory is designated as the Colorado River Indian Reservation, reflecting the administrative and social geography of the era. Evidence of mineral prospecting is visible in the southeastern reaches of the mountains, specifically at the Valenzuella Mine and Mammoth Mine. Drainage patterns like the Tyson Wash illustrate the seasonal hydrology of this arid region, providing a detailed look at the intersection of natural topography and mining history before mid-century developments.

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Map Details

Date Portrayed1931
Date Published1955
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62500
Physical Dimensions16.9 x 20.8 inches

Editions of this 1931 Moon Mtn Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain