Sparkes, G.M., 1917, Yavapai, the land of opportunity: Arizona Bureau of Mines Bulletin no. 59, 9 p. Authors Sparkes, G.M. Publication Date 1917 Citation Arizona Bureau of Mines Bulletin no. 59, 9 p. State AZ Province TR BR County YA Keywords History Production More Keywords History, Production, AzGeoBib RefNum 9577