Chichagof Extension Gold Prospect

The Chichagof Extension Gold Prospect is a gold mine located in Alaska at an elevation of 200 feet.

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: Chichagof Extension Gold Prospect
Secondary: Chichagof Extension No. 4 Claim

Commodity

Primary: Gold

Location

State: Alaska
District: Chichagof

Land Status

Land ownership: National Forest
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

Not available

Rocks

Name: Siltstone
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Siltstone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous

Analytical Data

Not available

Materials

Ore: Gold
Gangue: Quartz

Comments

Comment (Development): CLAIM OWNED BY CHICHAGOF EXTENSION MINING CO. AS OF 1938. NO PRODUCTION.

Comment (Commodity): NO DATA ON METAL CONTENT, BUT AU IS LIKELY PRESENT.

Comment (Location): USGS B 929, PLATE 1; USGS MF-467, LOC. 35 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Deposit): TRENCHES EXPOSE THREE QUARTZ VEINS IN GRAYWACKE. VEIN NO. 1 EXPOSED FOR 30 FT., IS 3 FT. WIDE FOR 8 FT.. VEIN NO. 2 EXPOSED FOR 20 FT., 6-14 IN. WIDE. VEIN NO. 3 EXPOSED FOR 140 FT., UP TO 1 FT. THICK.

Comment (Workings): 3 TRENCHES UP TO 140 FT. LONG.

Comment (Deposit): NO SPECIFIC MENTION OF GOLD, BUT BECAUSE OF AMOUNT OF WORKINGS, IT WAS LIKELY PRESENT. AUTHORS OF USGS B 929 (REED AND COATS) COMMONLY OMIT MENTION OF GOLD CONTENT OF VEINS. ; INFO.SRC : 1 PUB LIT

References

Reference (Deposit): USGS B 929, P. 128-129, PLATES 1, 3 (1941)

Reference (Deposit): USGS OF 78-450, P. 27 (1978)

Reference (Deposit): USGS MF-467, LOC. 35 (1972)

Reference (Other Database): BAG-B-929-PL-1

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