Frances Prospect

The Frances Prospect 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: Frances Prospect

Commodity

Primary: Gold
Primary: Silver
Tertiary: Copper

Location

State: Alaska
District: Kantishna District

Land Status

Land ownership: National Park
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
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Kantishna Antiform

Alterations

Not available

Rocks

Name: Schist
Role: Host
Age Type: Host Rock Unit
Age Young: Early Cambrian

Analytical Data

Analytical Data: ASSAY: 0.02-0.04 OZ/TON AU AND 0.6-0.8 OZ/TON AG REPORTED IN WELLS, 1933, (REF 3)
Analytical Data: ANOTHER SAMPLE ASSAYED AT 35 DOLLARS/TON IN AU AND AG (AU AT 20.67 DOLLARS/OZ, AG AT 1.00 DOLLAR/OZ), IN DAVIS, 1923, (REF 1)
Analytical Data: SAMPLES TAKEN ACROSS VEIN ASSAYED: TRACE TO 0.06 OZ/TON AU, 0.10-1.00 OZ/TON AG

Materials

Ore: Gold
Ore: Silver
Gangue: Quartz
Gangue: Pyrite

Comments

Comment (Workings): 70 TO 75 FT TUNNEL DRIVEN ALONG VEIN N 55 E AND OPEN CUTS; OPEN CUTS CAVED IN 1931

Comment (Geology): MINEROLOGY SUGGESTS THAT THIS SITE AND OTHER NEARBY SITES LIE ON THE SAME VEIN SYSTEM, PARTICULARLY GALENA, LITTLE MAUDE, MARTHA Q, POLLY WONDER, SILVER PICK, GOLD DOLLAR, GOLD EAGLE, LITTLE ANNIE

Comment (Deposit): SEE ALSO: LITTLE MAUDE, POLLY WONDER, MARTHA Q ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Commodity): DATA FROM THIS SITE LUMPED WITH NEARBY SITES SHOWS ZN AND PB SULFIDES; ZN AND PB NOT SPECIFICALLY REPORTED FROM FRANCIS

Comment (Reserve-Resource): HALF-SQUARE RESOURCE ESTIMATE: 468 TONS OF ORE; GRADE: 8.18 OZ/TON AG, 0.20 OZ/TON AU; 2.0% PB AND 0.1% ZN, ADGGS REPORT OF INVESTIGATIONS 83-12, P. 17

Comment (Location): PLOTTED FROM SKETCH MAP IN USGS BULLETIN 836, P.324 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Deposit): VEIN THINS FROM 40 IN TO STRINGERS IN SCHIST COUNTRY ROCK; MOSTLY WHITE QUARTZ CARRYING FREE GOLD, SILVER AND SCATTERED PYRITE CRYSTALS

References

Reference (Deposit): DAVIS, 1923, THE KANTISHNA REGION, ALASKA, IN STEWART, B.D., ANNUAL REPORT OF THE MINE INSPECTOR TO THE GOVERNOR OF ALASKA, 1922: JUNEAU, ALASKA, P. 124, 125

Reference (Deposit): USGS BULLETIN 836, P. 332

Reference (Deposit): USGS BULLETIN 849-F, P. 368

Reference (Deposit): USGS OPEN FILE 77-169A, P. 44 LOC. 4 (COMBINED DATA)

Reference (Deposit): ADGGS OPEN FILE 98, P. 31 LOC. 20 (DATA COMBINED WITH LITTLE MAUDE AND POLLY WONDER)

Reference (Deposit): USBM OPEN FILE 24-78, P. 4-26

Reference (Deposit): ADGGS REPORT OF INVESTIGATIONS 83-12, P. 17

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