Commodities
PrimaryGold
SecondarySilver, Lead, Copper
Commodity typeM
Deposit
Model85: Polymetallic veins
Materials
Ore mineralsChalcopyrite, Galena, Gold, Pyrite, Sphalerite
GangueCalcite, Quartz, Sericite
Economic & production
Development statusPast Producer
First production1874
Discovery year1873
Identification
Deposit ID10240347
Alternate namesNorth London Mill 0080930194, London-Butte Mine, London Fault Adit, London Extension 0080930027, North London Mine 0080930195, South London Mine 0080930239
RegionNA
Data scoreB
Coordinates39.27309, -106.1437
References
MINE MAP REPO #402005 #402201 #402202.MILS WITH CURRENT MSHA SHEET, 3-80.THE MINING RECORD, V98, #23, AUG. 26, 1987, P12., "BOULDER GOLD EXERCISES OPTION FOR PRODUCTION AT LONDON MINE."Patton, H. B., Hoskin, A. J., and Butler, G. M., 1912, Geology and ore deposits of the Alma district, Park County, Colorado: Colorado Geological Survey Bulletin 3, 284 p.Singewald, Q. D., and Butler, B. S., 1941, Ore deposits in the vicinity of the London fault of Colorado: U.S. Geological Survey Bulletin 911, 74 p.Vanderwilt, J.W., 1947, Mineral resources of Colorado: State of Colorado Mineral Resources Board, 547 p.USBM MINERALS TODAY, JANUARY 1990, P. 25.Long, K. R., DeYoung, J. H., Jr., and Ludington, S. D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States: Geological Survey Open-File Report 98-206, pt. B.