Higgins, Edwin, 1911, The Vekol copper deposits: Engineering and Mining Journal, v. 91, March 4, p. 473-474. Authors Higgins, Edwin Publication Date 1911 Citation Engineering and Mining Journal, v. 91, March 4, p. 473-474. State AZ Province BR County PN Placenames Vekol Mts. Keywords Porphyry Copper Replacement Mineralization Copper Zinc Gold Silver More Keywords Porphyry Copper, Replacement, Mineralization, Copper, Zinc, Gold, Silver, AzGeoBib RefNum 13929