Alaska
Past Producer
Jumbo Mine
Alaska, United States
Copper
Gold
Silver
Iron
Molybdenum
Zinc
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USGS source ↗
Commodities
Primary
Copper, Gold, Silver
Tertiary
Iron, Molybdenum, Zinc
Commodity type
M
Deposit
Deposit size
S
Materials
Ore minerals
Chalcopyrite, Magnetite, Molybdenite, Specularite, Sphalerite
Gangue
Epidote, Garnet, Pyrite, Pyrrhotite, Scapolite, Wollastonite
Geology
Host rock
Limestone
Associated rock
Diorite
Economic & production
Development status
Past Producer
First production
1903
Last production
1919
Identification
Deposit ID
10000496
MRDS ID
A010683
Alternate names
Magnetite Cliff, Copper Mountain
Region
NA
Data score
B
Coordinates
55.25251, -132.62124
References
USGS BULLETIN 347, P. 199-102USBM REPORT OF INVESTIGATIONS 3952USGS PROFESSIONAL PAPER 251USGS OPEN FILE 78-869, P. 103-105ADGGS GEOLOGIC REPORT 48, P. 36-38USBM REPORT OF INVESTIGATIONS 3952, P. 6: USGS PROFESSIONAL PAPER 251