The Big Four is a gold and silver mine located in Lander county, Nevada.
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
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.
Big Four MRDS details
Site Name
Primary: Big Four
Commodity
Primary: Gold
Primary: Silver
Location
State: Nevada
County: Lander
District: Mccoy
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1929
Discovery Year: 1929
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR TO IRREGULAR MASSES
Structure
Type: L
Description: Diorite Intrudes Limestone Of The T2 Cane Spring Form.
Alterations
Alteration Type: L
Alteration Text: Diorite Stock Has Been Intensely Alterred & Silicified
Rocks
Name: Diorite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Name: Diorite
Role: Host
Age Type: Associated Rock
Age Young: Late Jurassic
Analytical Data
Not available
Materials
Ore: Gold
Ore: Pyrite
Comments
Comment (Geology): THE DEPOSITS CONSISTS OF FREE GOLD WITH QUARTZ, OPALITE, JASPER, IRON OXIDES AND CALCITE
Comment (Deposit): PROPERTY IS EXPLORED BY LIMITED UNDERGROUND WORKINGS. A SHIPPMENT OF 60 TONS OF ORE AVERAGED ABOUT $61 TO THE TON IN 1929. ; INFO.SRC : 1 PUB LIT
References
Reference (Production): STAGER, H.K., 1977
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.
