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2018 Map of Santa Rosa Mountains SE

Name: 2018 Topographic Map of Santa Rosa Mountains SE
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

The Santa Rosa Mountains dominate the northwestern corner of this Pima County landscape, giving way to the broad Pipyak Valley as the terrain levels out toward the east. The arid environment is defined by intermittent drainage systems, most notably the winding course of Sil-Nakya Wash, which flows through the center of the quadrangle. Small settlements like Hoi Oidak and Pipyak are situated along local road networks that follow the natural topography of the basin floor.

To the south and east, the desert floor is punctuated by the Sil Nakya Hills and the Vaca Hills. These prominent landforms provided essential navigational landmarks in an area where water sources, such as the Sil Nakya Wash, were the primary drivers of settlement patterns and seasonal movement. The map reflects the enduring geography of the Sif Oidak District, where the placement of infrastructure remains closely tied to the ancient wash corridors.