The Big Four Mineral Cr. Mine is a gold mine located in Alaska.
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
Big Four Mineral Cr. Mine MRDS details
Site Name
Primary: Big Four Mineral Cr. Mine
Commodity
Primary: Gold
Tertiary: Lead
Tertiary: Zinc
Location
State: Alaska
District: Port Valdez
Land Status
Land ownership: State
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
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1914
Year Last Production: 1939
Discovery Year: 1911
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: QUARTZ VEIN
Structure
Type: L
Description: Veins Are Offset By Faults Trending N 10 To 20 E
Alterations
Not available
Rocks
Name: Slate
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Slate
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous
Analytical Data
Analytical Data: NO DATA
Materials
Ore: Galena
Ore: Gold
Ore: Sphalerite
Gangue: Pyrite
Gangue: Quartz
Comments
Comment (Location): SEE VALDEZ A-7 QUADRANGLE; LOCATION IS PLOTTED AS ADIT SYMBOL. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Production): UNKNOWN BUT SMALL AMOUNT OF ORE MILLED ON PROPERTY IN 1921, 1922, 1934, 1937 AND PROBABLY IN 1939
Comment (Development): LOCATED 1911; MILL INSTALLED 1914; INTERMITTENT ACTIVITY 1914 TO 1939
Comment (Deposit): SHATTERED QUARTZ VEINS 1 TO 5 FT THICK; STRIKE: N 55 TO 80 E, DIP:70 TO 80 N; CUT OUT BY FAULTS IN AT LEAST 2 PLACES
Comment (Workings): 450 FT OF UNDERGROUND WORKINGS DRIVEN BY 1921, NOT INCLUDING STOPES; PROBABLY WAS MORE WORK DONE IN LATER YEARS; PRESENT CONDITION UNKNOWN
Comment (Deposit): SEE ALSO: BIG FOUR (MCALLISTER CR.) ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): USGS BULL 520, P. 125
Reference (Deposit): USGS BULL 622, P. 153, 164-165
Reference (Deposit): USGS BULL 880-A, P. 23-24
Reference (Deposit): USGS MF-438, LOC. 22
Reference (Deposit): USGS OFR 80-892B, LOC. 19
Reference (Other Database): BAG-OFR-80-892B-19
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
