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2021 Map of Big Maria Mountains NE, 2021 Print
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2021 Map of Big Maria Mountains NE

USGS Topo · Published 2021

About this map

The Colorado River forms the vital boundary between California and Arizona, carving through a landscape defined by the stark contrasts of the Big Maria Mountains and the irrigated expanses of Parker Valley. This 2021 survey documents the rugged eastern slopes of the Big Maria range, where landmarks like Quien Sabe Point overlook the river bottomlands. On the California side, the desert floor is marked by historical transit routes such as the Old Blythe-Vidal Rd, which skirts the base of the Riverside Mountains to the north. Across the river in Arizona, the topography softens into the sediment-rich flats of Parker Valley, where the survey captures a network of rural access roads like Peterson Rd. The presence of landforms such as Barrie Island and Hall Island indicates the shifting nature of the river's channel before it reaches the alluvial plains further south.

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Map Details

Date Portrayed2021
Date Published2021
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions24 x 29 inches

Editions of this 2021 Big Maria Mountains NE Map

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

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain