Geologic map of the Sonora quadrangle, Pinal and Gila Counties, Arizona
By: Department of the Interior, United States Geological Survey ; by H.R. Cornwall, N.G. Banks, and C.H. Phillips.
Contributors: Cornwall, Henry Rowland, 1913-; Banks, Norman G.; Phillips, C. H.
Series: Geologic quadrangle map -- GQ-1021.
Publisher: The Survey
Place of publication: Reston, Va
Format: Map
Subjects: Geology -- Arizona -- Pinal County -- Maps.; Geology -- Arizona -- Gila County -- Maps.
Genres: Maps.
Other titles: Sonora quadrangle, Pinal and Gila Counties, Arizona, geologic map.
Notes: Relief shown by contours and spot heights.

"Geology mapped in 1965-70."

Includes text, bibliography, 5 col. cross sections, and quadrangle map.