Norwich

The Norwich is a mine located in Silver Bow county, Montana at an elevation of 5,722 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: Norwich
Secondary: Norwich-Plutus
Secondary: Plutus

Commodity

Tertiary: Manganese
Tertiary: Silver

Location

State: Montana
County: Silver Bow
District: Butte District

Land Status

Land ownership: Private
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: Patented

Workings

Not available

Ownership

Owner Name: Anaconda Co.
Percent: 100.0
Home Office: New York
Info Year: 1976

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Mining Method: Unknown
Year First Production: 1917
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Wad
Unknown: Chalcopyrite
Unknown: Freibergite
Unknown: Galena
Unknown: Pyrargyrite
Unknown: Pyrite
Unknown: Pyrolusite
Unknown: Quartz
Unknown: Rhodochrosite
Unknown: Silver
Unknown: Sphalerite
Unknown: Stromeyerite
Unknown: Molybdenite
Unknown: Argentite

Comments

Comment (Deposit): THE NORWICH IS ONE OF 39 BUTTE MN DEPOSITS. A COMPLETE EVALUATION OF THE MN DISTRICT IS AVAILABLE UNDER SEQ NO. 0300930224. THE TONNAGE PRESENT IN THE NORWICH WAS NOT USED IN THE PROPOSED DEVELOPMENT OF BUTTE MN BECAUS OF INSUFFICIENT ASSAY DATA ON PRIMARY COPRODUCTS (ZN,PB AG). FURTHER INVESTIGATION IS ADVISED. EXTENDS WEST INTO THE MAPLETON CLAIM AND POSSIBLY FARTHER INTO THE GREAT REPUBLIC CLAIM. THE NORWICH VEIN ENDS TO THE EAST AGAINST THE EXTENSIVE RHYOLITE OUTCROP THAT SURROUNDS BIG BUTTE.

References

Reference (Deposit): SCHEITLIN 1955 PARAGENESIS PRIM. ORE NORWICH UNPUBTHESIS MTT

Reference (Deposit): ALLSMAN 1955 OXID & ENRICH MN DEPS UNPUB MSTHESIS MTSCHMINES

Reference (Deposit): ANON,NODATE,NORWICH-PLUTUS-LITTLE SARAH UNPUB USBM RPT

Reference (Deposit): COLE NODATE CONFID SECT INVEST NORWICH MN MINE USBM UNPUB

Reference (Deposit): MCNABB NO DATE,ADDENDUM TO CONFID. SECT RI 4784 UNPUB

Reference (Deposit): ROMISCHER & PRINZ 1959 UNPUB RPT CONTRACT IDM-E604 USBM

Reference (Deposit): SCHEITLIN,1955,PARAGENESIS ORE NORWICH MINE BS THESIS MT TEC

Reference (Deposit): ALLSMAN,1955,OXIDAT.& ENRICH MANG DEPS BUTTE DIST MSTHESIS M

Reference (Deposit): COLE,1951,INV NORWICH MAN.DEP.USBM RPT INV.4784

Reference (Deposit): AU-NGOC-HO,1957,GEOL & ORE DEP,NORWICH MINE,MSTHESIS MT TECH

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.