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1979 Map of Black Hills

Name: 1979 Topographic Map of Black Hills
Creator: U.S. Geological Survey
Published: 1979
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1979

About this map

The Papago Indian Reservation defines this arid landscape in Pima County, where intermittent drainage patterns and low-lying desert peaks dominate the topography. The map detail centers on the Anegan Wash, a primary conduit for seasonal water through the basin, flanked by the Black Hills to the southeast and the Vaca Hills along the northern boundary. Land use in the late 1970s is indicated by a solitary Corral and the wide expanse of Coyote Field, suggesting seasonal ranching activities within the reservation.

Evidence of local resource extraction appears near Proctor Hill in the form of a Borrow Pit, while the presence of a Water Tank highlights the critical importance of water infrastructure in this high-desert environment. The topographical work by the U.S. Geological Survey captures a sparsely populated region of the Sonoran Desert, preserved at a time when the Sil Nakya Hills provided some of the only significant elevation changes on the western edge of the quadrangle.