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1988 Map of Chupan Mountain

Name: 1988 Topographic Map of Chupan Mountain
Creator: U.S. Geological Survey
Published: 1988
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1988

About this map

Papago Indian Reservation lands dominate this 1988 provisional survey, capturing a landscape defined by sharp elevation shifts and traditional water sources. The Mesquite Mountains and Chupan Mountain form a central topographic spine, dividing the terrain between the Quijotoa Valley to the north and Kom Valley to the southeast. This map reflects a period of limited revision, based on 1982 aerial photography and 1985 field checks, documenting the desert floor and its sparse but vital improvements.

Water infrastructure is remarkably focused, with Vasquez Well serving as a significant landmark in the eastern flats. The absence of dense settlement highlights the area's isolation and its reliance on these established points. Geographers and historians can trace the relationship between the dramatic peaks like Mamtotk Peak and the surrounding alluvial plains of La Quituni Valley, providing a clear record of the Pima County desert before modern changes influenced the reservation landscape.