1986 Map of Trigo Mts
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1986 Map of Trigo Mts

USGS Topo · Published 1986

About this map

The Colorado River carves a green path through the arid borderlands of Arizona and California, anchoring a landscape defined by military ranges and massive wildlife sanctuaries in the mid-1980s. Agricultural activity in the Palo Verde Valley near Palo Verde contrasts with the surrounding desert, where the Yuma Proving Ground and the Chocolate Mountain Aerial Gunnery Range dominate the terrain. Along the river's meandering course, specialized riverside sites like Paymaster Landing and Walters Camp provided access points for river travelers and local commerce.


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Map Details

Date Portrayed1986
Date Published1986
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:100,000
Physical Dimensions43.8 x 24.1 inches

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Source Details

CopyrightPublic Domain