Avalanche Debris Float

The Avalanche Debris Float is a copper mine located in Alaska at an elevation of 6,490 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: Avalanche Debris Float

Commodity

Primary: Copper
Tertiary: Chromium
Tertiary: Cobalt
Tertiary: Gold
Tertiary: Nickel
Tertiary: Palladium
Tertiary: Platinum

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: 1968
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: Olivine
Unknown: Plagioclase
Unknown: Pyroxene

Comments

Comment (Deposit): NO ALASKA KARDEX. NO RECORD EVER CLAIMED. ULTRAMAFIC ROCKS WERE FOUND IN AVALANCHE DEBRIS 2 1/2 MILES SOUTH AND A LITTLE EAST OF THE MOUNT-FAIRWEATHER SUMMIT ABOUT 6,500 FT IN A BASIN NEAR THE HEAD OF FAIRWEATHER GLACIER. HERE, ALTHOUGH MOST ROCKS WERE OF THE GABBRO CLAN, DUNITE, PYROXENITE, AND PERIDOTITE WERE ALSO FOUND. ANALYSES OF TWO SAMPLES GAVE VALUES IN PPM UP TO 6400 CU, 500 CR, 200 NI, 300 CO, .07 PT, .28 PD & 1.7 AU. GRAB SAMPLES WERE COLLECTED WITHIN THE MAPPED STOCK BOUNDARY WHERE ICE AND SNOW COVERED BEDROCK. FLOAT FROM WITHIN THE STOCK AND AREAS JUST OUTSIDE THE CONTACT WAS OBTAINED FROM OLD AVALANCHE PATHS CONTAINING SCATTERED ROCK DEBRIS.

References

Reference (Deposit): P700B pp. 21-26

Reference (Deposit): OF78-494 pp. C108-C118

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.