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Reconnaissance geologic map of the Mount Ajo and part of the Pisinimo quadrangles, Pima County, Arizona
Mount Ajo and part of the Pisinimo quadrangles, Pima County, Arizona, reconnaissance geologic map
1 map ; 45 x 55 cm., on sheet 61 x 112 cm., folded in envelope 30 x 24 cm.
Department of the Interior, U.S. Geological Survey ; by R.M. Tosdal [and others] ; prepared in cooperation with the Bureau of Indian Affairs and the Papago Indian Tribe.
Relief shown by contours and spot heights.
Includes text, bibliography, and index map.
Miscellaneous field studies ; map MF-1820