Fortymile R., Mosquito Fk. Placer

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.

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

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.