APPROXIMATELY LOCATED IN OR AROUND THE DIAMOND MINING DISTRICT; COUNTY REPORT BY DISTRICT; GEOLOGY; PRODUCTION; PHILLIPSBURG DISTRICT; U.S. BUREAU OF MINES INFORMATION CIRCULAR IC-7022; SITE NAME: CHAMPION MINE, CHAMPION SILVER MINING CO., EUREKA SILVER MINES CO., PHILLIPS GROUP, WILCOX AND FRAZER CLAIMS, SILVER BELL GROUP, PHILLIPS VEIN, SUMMIT MINING CO.; COMMODITY: SILVER, ANTIMONY, COPPER, LEAD, ZINC; AUTHOR: VANDERBURG, W.O.
