Eureka Prospect

The Eureka 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: Eureka Prospect

Commodity

Primary: Gold

Location

State: Alaska
District: Juneau/Berner'S Bay

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/Underground

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: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Analytical Data

Analytical Data: DATA COMBINED FROM 5 EXAMINATIONS SHOW AVERAGE VALUES FROM 0.195 TO 0.339 OZ AU FOR ASSAY BOUNDED AREAS OF 20 FT BY 400 FT TO 18 FT BY 400 FT, METZ AND WIEBMER, 1977 UNPUB. REPORT

Materials

Not available

Comments

Comment (Deposit): SEE ALSO: KENSINGTON, JOHNSON, COMET, JUALIN ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Deposit): STOCKWORK IN SHEAR ZONE IN DIORITE, SIMILAR TO KENSINGTON DEPOSIT BUT SMALLER; OUTCROP LENGTH 400 FT AND WIDTH 30-40 FT AT A DEPTH OF 350 FT

Comment (Workings): PROSPECTED BY SURFACE CUTS AND DRIFT; INTERSECTED BY KENSINGTON ADIT 1350 FT FROM PORTAL, 350 FT BELOW SURFACE

Comment (Development): INTERSECTED BY KENSINGTON ADIT IN 1904; MAY BE OF INTEREST AS PART OF KENSINGTON DEVELOPMENT IN THE FUTURE

Comment (Location): LOCATION OBTAINED FROM UNPUBLISHED MINES AND PROSPECTS MAP; SEE USGS 85-717, NO. J LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Reserve-Resource): METZ AND WIEBMER, 1977 UNPUB. REPORT

References

Reference (Other Database): BAG-OFR-85-717-093

Reference (Deposit): USGS BULL 287, P. 137

Reference (Deposit): USGS BULL 284, P. 32-33

Reference (Deposit): METZ, PAUL A. AND WIEBMER, JOHN D., 1977, M.I.R.L. SUMMARY FILE REPORT; EUREKA, KENSINGTON, COMET, JOHNSON AND JUALIN MINES, BERNER'S BAY, JUNEAU DISTRICT, AK: UNPUBLISHED REPORT TO USBM

Reference (Deposit): USGS OFR 85-717, NO. J093

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