Nancy Hanks Mine

The Nancy Hanks Mine is a gold and silver mine located in Granite county, Montana at an elevation of 6,050 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: Nancy Hanks Mine
Secondary: Minnie Palmer

Commodity

Primary: Gold
Primary: Silver
Secondary: Copper
Secondary: Lead
Tertiary: Barium-Barite
Tertiary: Antimony

Location

State: Montana
County: Granite
District: Garnet (First Chance) District

Land Status

Not available

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: American Mining Co.
Home Office: 700 Securities Bldg., Seattle, Wa. 98101

Owner Name: American Mining Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1896
Discovery Year: 1874
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Garnet Range

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Description: Bearmouth Overthrust, Deep Creek Anticline, Mount Baldy Synclinorium

Type: L
Description: Stock Has Intruded Northern Limb Of Deep Creek Anticline Which Trends About N 70 E And Plunges About 30 Deg. W. Post Ore Movement In Plane Of Vein Has Severely Crushed Ore In Many Places. Veins Have Been Cut By Transverse And Strike Faults, But Few Have Displacements Greater Than 1 M.

Alterations

Not available

Rocks

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

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Analytical Data

Analytical Data: AVERAGE 3-4% CU, 10OZ/TON AG, 4OZ/TON AU

Materials

Ore: Galena
Ore: Gold
Ore: Tetrahedrite
Ore: Chalcopyrite
Gangue: Pyrite
Gangue: Quartz
Gangue: Limonite
Gangue: Barite

Comments

Comment (Reserve-Resource): ANY REMAINING ORE LIKELY TO BE LOW GRADE AND AT A DEPTH OF 100 TO 200 M

Comment (Commodity): GOLD DISSEMINATED IN PYRITE AND LIMONITE

Comment (Location): UTM LOCATION OF MINNIE PALMER STOPE

Comment (Production): 1916-1942 PRODUCTION ESTIMATED FROM DISTRICT PRODUCTION , MOST PRODUCTION CAME FROM STOPE W. OF OLD SHAFT.

Comment (Geology): VEINS ARE WITHIN 50 M OF EDGE OF GRANODIORITE STOCK AND ARE APPROXIMATELY PARALLEL WITH THE GRANODIORITE - LIMESTONE CONTACT. LIMESTONE BELONGS TO HASMARK FM.

Comment (Deposit): THE NANCY HANKS VEIN SYSTEM IS THE NORTHERNMOST OF THREE VEIN SYSTEMS IN THE FIRST CHANCE DISTRICT. ON THIS COMPOSITE VEIN ARE THE SHAMROCK, DEWEY, NANCY HANKS, AND CASCADE MINES, NAMED IN ORDER FROM EAST TO WEST. ; INFO.SRC : 1 PUB LIT

Comment (Deposit): "RED ORE" SHOOT PRODUCED AT LEAST 50% OF THE TOTAL PRODUCTION. A TABULAR BODY 165 FT LONG, AND FROM 1-3 FT THICK, PINCHING OUT SLIGHTLY W. IT IS W OF OLD SHAFT. INDIVIDUAL VEINS IN THIS ZONE, WHICH IS ABOUT 2000 M LONG, RARELY PERSIST IN LENGTH OR DEPTH FOR MORE THAN 50 M.

Comment (Workings): 2 SHAFTS, NANCY HANKS "OLD SHAFT" AND THE MINNIE PALMER SHAFT.

Comment (Location): Political location in record is Granite county. The MRDS location-problem GIS test indicated the lat/long fell in adjacent Missoula county. However, topo sheet, Google Earth, and the County100 coverage plot it 740 meters inside Granite county. No change is necessary.

References

Reference (Deposit): USGS BULL 660, P. 182-184.

Reference (Deposit): MBMG MEM NO 31 P. 32.

Reference (Deposit): MBMG MEM NO 39, P. 28.

Reference (Deposit): MBMG BULL 82, P. 8.

Reference (Production): USGS BULL. 660-F, MBMG MEM. 39

Principal Gold Districts of Montana

In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.