Locality 18

The Locality 18 is a copper 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: Locality 18
Secondary: West Shore Tarr Inlet

Commodity

Primary: Copper
Tertiary: Arsenic
Tertiary: Lead
Tertiary: Molybdenum
Tertiary: Tin
Tertiary: Tungsten
Tertiary: Zinc
Tertiary: Silver
Tertiary: Bismuth
Tertiary: Cadmium

Location

State: Alaska
District: Juneau District

Land Status

Land ownership: National Wilderness
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

Type: Minerals Only

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Mining Method: Unknown
Discovery Year: 1937
Years of Production:
Organization:
Significant: N

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Epidote
Unknown: Apatite
Unknown: Arsenopyrite
Unknown: Augite
Unknown: Biotite
Unknown: Calcite
Unknown: Chalcopyrite
Unknown: Chlorite
Unknown: Pyrite
Unknown: Andesine
Unknown: Sphalerite
Unknown: Sericite
Unknown: Garnet
Unknown: Goethite
Unknown: Hornblende
Unknown: Muscovite
Unknown: Oligoclase
Unknown: Orthoclase
Unknown: Pyrrhotite
Unknown: Quartz
Unknown: Albite

Comments

Comment (Deposit): DISC. 1966. NO CLAIMS. DEPOSIT CONSISTS OF ALTERATION ZONES AND LOCAL DISSEMINATED SULFIDES IN HORNFELS. CHALCOPYRITE < 0.3 %; PYRITE > 0.3 %. BEST OUTCROPS: 1500 PPM CU & MINOR BI, W, SN. FURTHER EXPLORATION RECOMMENDED.

Comment (Geology): SPECIFIC SILVER, MOLYBDENUM, CADMIUM AND/OR LEAD MINERAL WERE NOT MENTIONED IN THE REFERENCES.

References

Reference (Deposit): OF195 p. 222

Reference (Deposit): OF280

Reference (Deposit): P632 pp. 4, 40, 43

Reference (Deposit): MF424

Reference (Deposit): OF78-316 p. 112

Reference (Deposit): OF78-494 plates 1A, 1B, 2

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