The Old Bob Claim Group is a gold mine located in Humboldt county, Nevada at an elevation of 4,396 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: 4,396 Feet (1,340 Meters)
Commodity: Gold
Lat, Long: 40.94583, -118.12833
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.
Old Bob Claim Group MRDS details
Site Name
Primary: Old Bob Claim Group
Secondary: NBMG Sample Site 2629
Commodity
Primary: Gold
Tertiary: Tungsten
Tertiary: Arsenic
Location
State: Nevada
County: Humboldt
District: Mill City District; Central District
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Ocelot Mining Co., Denver, Co.
Years: 1984 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Low-sulfide Au-quartz vein
Orebody
Form: TABULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Chloritization, Kaolinization In Shear Zone
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: SAMPLE 2629 OF WHITE QUARTZ VEIN WITH HEMATITE AND PYRITE CONTAINS 1.5% FE, 0.03% MG, 0.05% CA, 0.07% TI, 20 PPM MN, 0.5 PPM AG, 7000 PPM AS, 20 PPM B, 5 PPM NI, 15 PPM PB, 10 PPM V, 70 PPM W.
Materials
Ore: Gold
Gangue: Pyrite
Gangue: Quartz
Gangue: Hematite
Comments
Comment (Location): INFO FROM LAND.ST :(1972)
Comment (Development): MOST RECENT ACTIVITY, CLAIM STAKING, MAY, 1984
Comment (Deposit): SHAFT SUNK ON WHITE QUARTZ VEIN IN SHEAR ZONE IN DIORITE. DIORITE IS MODERATELY CHLORITIZED, KAOLINIZED IN THE SHEAR ZONE. OTHER SMALL PROSPECTS OCCUR ALONG STRIKE OF THE ZONE. IN THE SADDLE TO THE SOUTHWEST. A LARGE OUTCROP OF WHITE QUARTZ OCCURS ON THE CONTACT SHALEY HORNFELS WITH DIORITE.
Comment (Workings): INCLINE SHAFT 20 FT DEEP, PROSPECT CUTS
References
Reference (Deposit): TINGLEY, J.V., 1984, NBMG FIELD EXAMINATION, 9/20/84
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
