Portage Prospect

The Portage Prospect 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: Portage Prospect

Commodity

Primary: Gold
Secondary: Copper
Tertiary: Lead

Location

State: Alaska
District: Admiralty

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

Form: LENSE

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Galena
Ore: Chalcopyrite

Comments

Comment (Location): BEST LOCATION: USGS GQ-100, PROSPECT 2 MI NE OF FUNTER BAY LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): ACTIVE IN EARLY 1900'S

Comment (Deposit): ASSAYS TOO LOW TO ENCOURAGE DEVELOPMENT; SEE ALSO: MAMMOTH-ADMIRALTY I, MANSFIELD, MAMMOTH, YOUNG BAY AND ALASKA-TREASURE; LOCATIONS IN LITERATURE DO NOT AGREE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Deposit): 1. LENTICULAR QUARTZ MASSES, SUBPARALLED TO CLEAVAGE OF ENCLOSING SLATE, CARRY PYRITE, CHALCOPYRITE AND MINOR GALENA, LOW GRADE AU VALVES BY 1900 STANDARDS; 2. NEARBY MINERALIZED BAND OF CHLORITE-MICA SCHIST CUT BY QUARTZ-CALCITE VEINLETS CONTAINING SMALL MASSES OF PYRITE AND CHALCOPYRITE ACROSS A WIDTH OF 30-40 FT

Comment (Workings): EXPLORED BY SMALL SHAFT AND OPEN CUTS BEFORE 1908

References

Reference (Deposit): ADGGS GC 8, P. 19

Reference (Deposit): USGS BULL 1246, P. 140

Reference (Deposit): USGS GQ-100

Reference (Deposit): USGS BULL 287, P.150

Reference (Deposit): USGS BULL 314, P. 59

Reference (Deposit): USGS OFR 85-717, P.61

Reference (Other Database): BAG-OFR-85-717-048

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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.