Butler, G.M., 1929, Geological occurrence of Arizona asbestos: Pan-American Geologist, v. 52, p. 19-26. Authors Butler, G.M. Publication Date 1929 Citation Pan-American Geologist, v. 52, p. 19-26. State AZ Province TR County GI Placenames Sierra Ancha Salt River Canyon area Keywords Asbestos More Keywords Asbestos, AzGeoBib RefNum 1534