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1955 Map of Big Maria Mts. SE, 1991 Print
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1955 Map of Big Maria Mts. SE

USGS Topo · Published 1991

About this map

Ancient geoglyphs known as the Giant Indian Intaglios overlook the valley floor where the Colorado River carves the boundary between California and Arizona. This 1955 survey, updated with 1970 aerial photography, reveals a riverside landscape defined by a mix of mid-century recreation and rugged desert terrain. Small riverfront outposts like River Bend Lodge, Harkers Camp, and Thompsons Camp dot the western bank, while the eastern shore is dominated by the Colorado River Indian Reservation. The map captures the river's complex hydrology before extensive modern alteration, showing named landforms like Horse Island and Hall Island. Inland to the west, the Big Maria Mountains rise sharply, marked by various Prospect sites and the prominent Black Point, reflecting the region's mining and geological history.

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Map Details

Date Portrayed1955
Date Published1991
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.5 x 26.8 inches

Editions of this 1955 Big Maria Mts. SE Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain