Arizona Mining Journal, 1920, World's Fair silver mine: Arizona Mining Journal, v. 4, no. 5, p. 9-10. Authors Arizona Mining Journal Publication Date 1920 Citation Arizona Mining Journal, v. 4, no. 5, p. 9-10. State AZ Province BR County SC Placenames Patagonia Mts. Keywords Mineral District Silver More Keywords Mineral District, Silver, AzGeoBib RefNum 444