The Crown Point Con. Qtz. is a gold mine located in Nevada county, California at an elevation of 2,500 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: 2,500 Feet (762 Meters)
Commodity: Gold
Lat, Long: 39.22, -121.05167
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.
Crown Point Con. Qtz. MRDS details
Site Name
Primary: Crown Point Con. Qtz.
Secondary: Confidence
Secondary: Wm. Penn
Commodity
Primary: Gold
Secondary: Copper
Secondary: Lead
Secondary: Silver
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
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: ONE ASSAY OF 17.5 OZ AU/TON 12 OZ AG/TON
Materials
Ore: Gold
Ore: Galena
Ore: Pyrite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Workings): INCLINE & DRIFTING
Comment (Deposit): PATENTED 18.86 ACRES ; INFO.SRC : 1 PUB LIT
Comment (Production): EARLY PRODUCTION $130,000 , AVG. $17 AU/TON & 3 % SULFIDES AT $60 AU/TON
Comment (Deposit): VEIN, FEW IN - 7 FT. THICK, 2 - 3 % SULFIDES
Comment (Geology): HANGING WALL CALAVERAS SLATE, FOOTWALL ALTERED SERPENTENIZED DIABASE PORPHYRITE. CROWN POINT VEIN CARRIES MAGNETITE, PYRRHOTITE - ONLY HYPOTHERMAL VEIN IN GRASS VALLEY AREA
References
Reference (Deposit): LOGAN, C. A., 1941 , MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , PL. 3 , P. 390 - 391 .
Reference (Deposit): MACBOYLE, E., 1919 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P.
Reference (Deposit): IRELAND, W., JR., 1888 , REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 8 , P. 429 - 430 .
Reference (Deposit): JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 24 , 93 .
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.
