Childs Mountain dominates the central landscape of this western Pima County region, its volcanic-formed ridges and deep canyons defining the local geography. To the south, the terrain descends toward the Little Aja Mountains, while the northeast is characterized by the broad floor of Childs Valley. The settlement pattern is concentrated in the southeastern corner, where the community of Ajo and the neighboring locale of Gibson sit at the base of the highlands. This area, known for its mining heritage, is documented here through a dense network of residential streets including W Rasmussen Rd and N Thompson Ave. Drainage patterns, vital in this arid environment, are traced through the Gibson Arroyo and the seasonal waters of Tenmile Wash, which runs parallel to the Az 85 corridor. Notable landmarks such as Pozo Salado provide a glimpse into the distribution of water resources that historically supported life in the Sonoran desert.
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This is the sole edition of this map. No revisions or reprints were ever made.
1932 · Ajo
USGS Topo · 1:62,500
1934 · Ajo
USGS Topo · 1:62,500
1953 · Ajo
USGS Topo · 1:250,000
1957 · Ajo
USGS Topo · 1:250,000
1958 · Ajo
USGS Topo · 1:250,000
1958 · Midway
USGS Topo · 1:62,500
1962 · Ajo
USGS Topo · 1:250,000
1963 · Ajo
USGS Topo · 1:250,000
1963 · Ajo
USGS Topo · 1:62,500
1964 · Growler Peak
USGS Topo · 1:62,500