Mine detail: Osborn Hill

Location:	Nevada County, California, United States, North America
Lat / long:	39.19406, -121.03714
dep_id:	10007253
mrds_id:	C010926
Commodity type:	metallic
Major mineral:	Gold
Minor mineral:	Lead, Zinc, Copper
Operation type:	Unknown
Production size:	Small ammount of material produced
Development status:	Past Producer
ore:	Chalcopyrite, Galena, Gold, Pyrite, Sphalerite
gangue:	Quartz
work_type:	Underground
Reporter:	Bowman, J. And Albers, J., Mosier, Dan
hrock_type:	Sandstone
References:	Deposit:: LOGAN, C. A., 1941 , MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , PL. 3 . Deposit:: JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 92 . Deposit:: CRAWFORD, J. J., 1894 , REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 12 , P. 198 . Deposit:: MACBOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P 226 - 227 .