Loading map...

1964 Map of Grayback

Name: 1964 Topographic Map of Grayback
Creator: U.S. Geological Survey
Published: 1970
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1970

About this map

The Gila River winds across the northern reaches of this Pinal County landscape, shadowed by the Southern Pacific railroad line. This 1964 field-checked survey reveals an arid territory defined by remote ranching and mining operations. Isolated outposts such as A-Diamond Ranch and Tea Cup Ranch are connected by a network of primitive tracks, while the high peak of Grayback and the sharp ridge of The Spine dominate the central topography.

Evidence of mineral exploration is scattered throughout the canyons and washes, from the Golden Bell Mine in the north to the Wooley Mine and various Prospects further south. Water sources are critical landmarks in this desert environment, marked by sites like Peg Leg Well and drainage systems including Zelleweger Wash and Donnelly Wash. The map also captures infrastructure of the era, such as a Substation and a Radio Tower, providing a detailed look at mid-century land use in the Arizona backcountry.