Quartz from Aguanga Mountain, Oak Grove, Aguanga Mountain Mining District (Smith Mountain Mining District), San Diego County, California, USA
USA | |
| Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology |
Tucker, W. B. and Reed, C. H. (1939) Los Angeles Field District, Mineral Resources of San Diego County - Gems. California Journal of Mines and Geology. Quarterly Chapter of State Mineralogist's Report 35, January, 1939, No. 1. State of California, Department of Natural Resources, Division of Mines: Page 40. |
Mountain Lily Mine, Aguanga Mountain, Oak Grove, Aguanga Mountain Mining District, San Diego County, California, USA