The Fortymile R., Mosquito Fk. 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., Mosquito Fk. Placer MRDS details
Site Name
Primary: Fortymile R., Mosquito Fk. Placer
Commodity
Primary: Gold
Secondary: Silver
Tertiary: REE
Tertiary: Tungsten
Tertiary: Tin
Tertiary: Thorium
Tertiary: Phosphorus-Phosphates
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
Owner Name: Alaska Gold Dredging Corp.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1905
Year Last Production: 1937
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
Analytical Data: FINENESS SAID TO BE .900 AU. SEE REF. 2, P. 181
Materials
Ore: Scheelite
Gangue: Sphene
Gangue: Zircon
Gangue: Barite
Gangue: Pyrite
Gangue: Tourmaline
Gangue: Magnetite
Gangue: Garnet
Gangue: Olivine
Unknown: Monazite
Unknown: Thorite
Unknown: Gold
Unknown: Cassiterite
Unknown: Silver
Comments
Comment (Location): USGS MF-393, LOC. 54. DEPOSITS ON SOUTH FORK BETWEEN DENNISON FK. AND ALWATER CREEK. THE MOSQUITO FK. AT TIMES HAS BEEN CONSIDERED PART OF THE SOUTH FK. COORDINATES GIVEN ARE FOR CENTRAL POINT. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Development): INTERMITTANT MINING REPORTED 1905-37. DREDGE OPERATED IN 1936-37.
Comment (Deposit): BAR MINING AND DREDGING NEAR ATWATER BAR AND LOST CHICKEN CREEK.
Comment (Deposit): RIVER GRADIENT UNDER 50 FEET 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.
References
Reference (Deposit): USGS BULL. 897-C, P. 173, 180-81
Reference (Deposit): USGS CIRC. 335, P. 10-12.
Reference (Deposit): USGS MF-393 (A-2), LOC. 54.
Reference (Other Database): BAG-MF-393-54
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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.
