East, J.H., Jr., 1941, Sonsela Mountain manganese: U.S. Bureau of Mines, unpublished preliminary report, 8 p. Authors East, J.H., Jr. Publication Date 1941 Citation U.S. Bureau of Mines, unpublished preliminary report, 8 p. State AZ Province CP County AP Placenames Sonsela Buttes Keywords Mineral District Manganese More Keywords Mineral District, Manganese, AzGeoBib RefNum 2916