- Anza-Borrego Desert State Park
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 322. Tucker, W. Burling & Charles H. Reed (1939), Mineral resources of San Diego County: California Division Mines Report 35: 29 |
Sherry Ann Mine, Jacumba, San Diego County, California, USA