The Union Hill Qtz is a gold mine located in Nevada county, California at an elevation of 2,799 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 2,799 Feet (853 Meters)
Commodity: Gold
Lat, Long: 39.2125, -121.02167
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Union Hill Qtz MRDS details
Site Name
Primary: Union Hill Qtz
Commodity
Primary: Gold
Secondary: Lead
Secondary: Zinc
Secondary: Tungsten
Location
State: California
County: Nevada
District: Grass Valley
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Form: STRINGERS, SEAMS
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Comments
Comment (Workings): SHAFTS, CROSSCUT, DRIFTING, STOPED
Comment (Production): ORE FROM CAMBRIDGE - LUCKY VEIN AVG. $20/TON UNION HILL VEINS CREDITED W/PRODUCTION EST. $500000 - $750000
Comment (Deposit): 3 VEINS W/2 % SULFIDES
Comment (Geology): SCHEELITE STRINGER, 2 - 7 FT. THICK IN GREEK - TUNGSTEN VEIN SCHIST IS DESCRIBED AS PORPHYRITIC & BRECCIATED
Comment (Deposit): PATENTED 23.11 ACRES INCLUDES UNION HILL, CAMBRIDGE - LUCKY AND CREEK - TUNGSTEN VEINS ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): MACBOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 254 - 255 .
Reference (Deposit): JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 97 - 98 .
Reference (Production): MACBOYLE ( 1918 ) JOHNSON ( 1941 )
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.
