The Greenback Prospect is a copper 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
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.
Greenback Prospect MRDS details
Site Name
Primary: Greenback Prospect
Commodity
Primary: Copper
Secondary: Lead
Secondary: Zinc
Location
State: Alaska
District: Kantishna
Land Status
Land ownership: National Park
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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Extensive Oxidation, Manganese Oxides Reported
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Permian
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: NONE AVAILABLE
Materials
Ore: Malachite
Ore: Sphalerite
Ore: Galena
Ore: Chalcanthite
Ore: Chalcopyrite
Gangue: Schist
Gangue: Garnet
Gangue: Pyrrhotite
Comments
Comment (Location): PLOTTED FROM USBM OFR 24-78, FIG. 4-1B LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Development): CLAIM RESTAKED IN 1966 BY ARLY TAYLOR
Comment (Deposit): DISSEMINATED ORE IN HIGHLY OXIDIZED COUNTRY ROCK NEAR CONTACT WITH INTRUSIVE
Comment (Workings): SOME OPEN CUTS
Comment (Geology): PALEOZOIC GARNET SCHIST CUT BY TERTIARY DIKE
Comment (Deposit): SEE ALSO: TERMINUS, MAGNET, OLD SOURDOUGH ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Other Database): BAG-MF-366-31
Reference (Deposit): USBM OFR 24-78, P. 4-57 AND FIG. 4.1-B
Reference (Deposit): USGS OFR 77-169A, P. 46 LOC. 40
Reference (Deposit): USGS BULL 836, P. 319-320
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