Latitude: 33°3'37"N
Longitude: 116°47'27"W
The Lookout mine is situated 7.4 km (4.6 miles) ENE of Ramona, and joins the Hercules mine on the northeast.
History:
A claim to the pegmatite deposit was first made by Samuel G. Ingle and Harry Titus, of San Diego, and Mr. Pray, of Escondido; in July, 1903.
Note: Work in progress to update this entry including more historic and modern development data, mineral species, references etc.
References
Kunz, George Frederick (1905a), Gems, jewelers’ materials, and ornamental stones of California: California Division Mines Bulletin 37, 171 pp.: 148-149.
Merrill, F. J. H. (1914), Geology and Mineral Resources of San Diego and Imperial Counties: Gems, Lithia Minerals. California State Mining Bureau, San Francisco, Cal. California State Printing Office, December. Chapter 1: 63, 72.
Weber, F. H., Jr. (1963a), Mines and mineral resources of San Diego County, California. California Division of Mines and Geology County Report 3, p. 106; 309 pp.: Pl. 5.
Murdoch, Joseph & Webb, Robert W. (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 195.
Pemberton, H. Earl (1983), Minerals of California: 455 (map 13-4).
Mineral List
33 entries listed. 16 valid minerals.
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