Napoleon Creek Placer

The Napoleon Creek 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: Napoleon Creek Placer

Commodity

Primary: Gold

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: 1898
Year Last Production: 1938
Discovery Year: 1893
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

Name: Gravel
Role: Host
Age Type: Host Rock Unit
Age Young: Eocene

Analytical Data

Analytical Data: FINENESS REPORTED TO BE 860 PARTS AU PER THOUSAND, BUT NO ASSAY SHEETS WERE SEEN.

Materials

Ore: Gold

Comments

Comment (Deposit): GOLD MAINLY ON AND IN CRACKS IN BEDROCK IN STREAM CUT AND BENCH TERRACES ALONG THE NORTH WALL OF THE VALLEY. MAIN PAY ZONE AT MOUTH AND 1.5 MILES UPSTREAM. GRAVEL AND MUCK OVERBURDEN 8-18 FT. THICK.

Comment (Deposit): STREAM GRADIENT ABOUT 150 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.

Comment (Commodity): SEE REF. 2, P. 184.

Comment (Location): USGS MF-393, LOC. 58. LOWER 1.5 MILES OF NAPOLEON CREEK A WESTWARD FLOWING TRIBUTARY TO SO. FORK FORTYMILE RIVER. COORDINATES FOR MINED MARKED ON EAGLE (A-2) NEAR MOUTH. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): GOLD DISCOVERED IN 1893 AT MOUTH. MINED MAINLY BY HYDRAULIC METHODS FROM 1898-1938.

Comment (Geology): AT MOUTH VALLEY IS 90 YARDS WIDE BETWEEN STEEP CONGLOMERATE BLUFFS. BEDROCK SURFACE VERY IRREGULAR. ; MAJOR.UNITS: BEDROCK IN LOWER (PAY) PART OF VALLEY IS COAL, CONGLOMERATE, AND SANDSTONE. FURTHER UPSTREAM BEDROCK IS MAFIC ROCKS, GREENSTONE, LIMESTONE, AND SCHIST CUT BY GRANITIC DIKES; AT HEADWATERS BEDROCK IS GRANITE.

References

Reference (Deposit): USGS MF-393 (A-2), LOC. 58.

Reference (Deposit): USGS BULL. 897-C, P. 183-185.

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