- Whetstone Mining District
| Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, AZ: 91 (Table 4) Dale, et al (1960): 56-57 Wilson, E.D. & G.H. Roseveare (1949), Arizona Nonmetallics, A Summary of Past Production and Present Operations, 2nd. Edition (revised), AZ Bur. Mines Bull. 155: 21 Arizona Bureau of Mines files. |
Lone Star Mine, McGrew Spring, Whetstone Mining District, Cochise County, Arizona, USA