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1990 Map of Mount Ajo
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1990 Map of Mount Ajo

USGS Topo · Published 1990

About this map

Organ Pipe Cactus National Monument and its interior Organ Pipe Cactus Wilderness define this high-desert landscape, dominated by the peaks of the Ajo Range. The map documents a rugged environment where survival and travel are dictated by water sources like Wild Horse Tank, Diablo Tank, and Bull Pasture Spring. The iconic Mount Ajo stands as a central landmark, flanked by deep drainages such as Arch Canyon and the various forks of Alamo Canyon. To the east, the terrain transitions into the Papago Indian Reservation and the expanse of Barajita Valley. Human impact is visible through the winding Ajo Mountain Drive and scattered infrastructure like the Barajita Well and various corrals. Occasional Mine Shaft and Prospects labels on the western slopes hint at the mineral exploration common throughout the Arizona borderlands.

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Map Details

Date Portrayed1990
Date Published1990
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1990 Mount Ajo 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