Chichagoff Mine

The Chichagoff Mine is a gold and silver 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: Chichagoff Mine
Secondary: De Groff
Secondary: Golden Gate

Commodity

Primary: Gold
Primary: Silver
Secondary: Lead
Tertiary: Arsenic

Location

State: Alaska
District: Chichagof District

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

Type: Surface

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1906
Year Last Production: 1943
Discovery Year: 1905
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: TABULAR, LENTICULAR

Structure

Type: R
Description: Sitka Fault Zone Is A Major Regional Feature

Type: L
Description: Chichagof Fault Localizes Ore Shoots

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Ore: Galena
Gangue: Quartz
Gangue: Calcite
Gangue: Pyrite

Comments

Comment (Location): 1 1/2 MILES FROM HIRST-CHICHAGOF MINE LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Production): NO TONNAGE FIGURES AVAILABLE. AVERAGE PLATE RECOVERY IN MILL REPORTED AS 1.07 OZ AU/TON AND 0.225 OZ AG/TON

Comment (Deposit): DEPOSITS ARE QUARTZ BODIES IN FAULT ZONES. ORE SHOOTS ARE STEEPLY PLUNGING AND LOCALIZED ALONG INTERSECTIONS OF CHICHAGOF FAULT AND SPLAYS FROM IT AND BY ROLL IN MAIN FAULT. STORE WIDTH OF SHOOTS GENERALLY 2-8 FT

Comment (Workings): MANY THOUSANDS OF FT OF UNDERGROUND WORKINGS ON SEVERAL LEVELS

References

Reference (Deposit): USGS OFR 78-450, P. 28-31

Reference (Deposit): USGS B929, P. 78-81, 86-101

Reference (Deposit): ADGGS SPEC REPT 31, P. 46

Reference (Production): ADGGS SPEC REPT 31

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