| David London, George B. Morgan VI, and James L. Maner (2016) Pegmatites of the Little Three mine, Ramona, San Diego County, California. in Second Eugene E. Foord Pegmatite Symposium July 15-19, 2016 Colorado School of Mines campus, Golden, Colorado www.nhm.org (1998) http://www.nhm.org Natural History Museum of LA Co. spec.#44050 |
Little Three Mine, Ramona, Ramona Mining District, San Diego County, California, USA