The Fortymile R., North Fork Placer 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
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.
Fortymile R., North Fork Placer MRDS details
Site Name
Primary: Fortymile R., North Fork Placer
Commodity
Primary: Gold
Tertiary: Tin
Location
State: Alaska
District: Fortymile
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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1903
Year Last Production: 1934
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Cassiterite
Ore: Gold
Gangue: Biotite
Gangue: Garnet
Comments
Comment (Geology): MAJOR.UNITS: BEDROCK IS QUARTZ BIOTITE GARNET SCHIST.
Comment (Deposit): STREAM GRADIENT UNDER 50 FT. PER MILE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Comment (Deposit): GOLD AND PLACER CASSITERITE IN BAR GRAVEL IN ARTIFICIALLY CUT OFF MEANDER ENTRENCHMENT
Comment (Location): USGS MF-393, LOC. 46. DEPOSIT IN ARTIFICIALLY CUT OFF MEANDER BAR MARKED "THE KINK" ON EAGLE (B-3), ADJACENT TO NORTH FK. FORTYMILE RIVER. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Development): MEANDER WAS CUT OFF IN 1903 WITH INTENTION OF MINING THE DRAINED MEANDER. DREDGE MOVED TO "THE KINK" IN 1912, BUT NEVER OPERATED SUCCESSFULLY, STILL THERE IN 1936. BAR MINING 1933-34.
References
Reference (Deposit): USGS BULL 872, P. 245.
Reference (Other Database): BAG-MF-393-46
Reference (Deposit): USGS MF-393 (B-3), LOC. 46.
Reference (Deposit): USGS BULL 251, P. 51-52.
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.
