REF: Robert, E. W. (1867) Historical Sketch Of Rough & Ready Township.
In: Bean, E. F. - Bean's History and directory of Nevada county, California With sketches of the various towns and mining camps Also full statistics of mining and all other industrial resources. Nevada, CA Printed at the Daily Gazette Book and Job Office 1867.
Raymond, Rossiter W (1875) Statistics Of Mines And Mining In The States And Territories West Of The Rocky Mountains; Being Тhе Seventh Annual Report United States Commissioner Of Mining Statistics, Government Printing Office 1875.
Anonymous (1882) Working Copper Ores At Spenceville Scientific American Supplement Vol. XIV No. 363 New York, December 16, 1882.
Irelan, William Jr (1893) Eleventh Report of the State Mineralogist, (First Biennial) Two Years Ending September 15, 1892. Sacramento CA (1893).
Aubury, Lewis E. (1902) The Copper Resources Of California Bulletin No, 23, California State Mining Bureau San Francisco, April, 1902, Sacramento, CA 1905.
Aubury, L.E. (1908), Copper Resources of California Bull. 50, California Min. Bureau: 191 - 194.
MacBoyle, E. (1918) Mines and Mineral Resources of Nevada County; 16th Report of the State Mineralogist; California Min. Bureau: 90.
California Journal of Mines & Geology: 37(3): July 1941: 464.
Report of the State Mineralogist XXVI; Industrial Service-Metalliferous II-C: 48; FOLIO 18.
California Division of Mines, Copper in California, Bull. 144, California Department of Res. (1948) (includes plates of mine maps and reference).
Moore, Lyman (1970) Data from 1970 evaluation.
Wanket, Daniel; Pujol, Alberto; Walker, William J.; Reynolds, Stephen (2002) Spenceville Mine Closure https://fs.ogm.utah.gov/pub/MINES/AMR_Related/NAAMLP/AMD1/Wanket.pdf
A former Cu-Au-Ag mine.
Mineralization is a vein deposit hosted in diabase and granodiorite.
Deposit Model: 184: Massive sulfide, Kuroko.
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