Gold Coin Mine

The Gold Coin Mine is a gold and silver mine located in Deer Lodge county, Montana at an elevation of 6,519 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: Gold Coin Mine

Commodity

Primary: Gold
Primary: Silver
Secondary: Copper
Tertiary: Platinum

Location

State: Montana
County: Deer Lodge
District: Gold Coin (Daly Gulch) District

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

Owner Name: Gold Coin Mining And Milling Co.
Years: 1972 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1898
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

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

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Form: VEIN

Structure

Type: R
Description: Philipsburg Batholith

Type: L
Description: Cable Stock, Faults

Alterations

Alteration Type: L
Alteration Text: Ferruginous

Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian

Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian

Analytical Data

Not available

Materials

Ore: Gold
Ore: Silver
Ore: Platinum
Ore: Pyrite
Ore: Pyrrhotite
Ore: Malachite
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Limonite

Comments

Comment (Production): FIRST PRODUCTION UNKNOWN BUT WAS AFTER 1898. PRODUCTION SHOWN IS FOR GOLD COIN DISTRICT, BUT ALL OR NEARLY ALL CAME FROM GOLD COIN MINE. BY 1912, $200,000 AU, 1930-40 CYANIDATION PRODUCED ABOUT $4 MILLION AU

Comment (Development): MILL AND PRINCIPAL MINE WORKINGS ON RED FIR CLAIM, MINOR DEVELOPMENT EXTENDS THROUGH SUNNYSIDE AND CENTER CLAIMS AND LITTLE JOSIE LODE. MINE HAS BEEN OPENED AND CLOSED MANY TIMES.

Comment (Location): LOCATION GIVEN IS OF MAIN ADIT. THE MINE IS ON A LOW HILL THAT SEPARATES DALY GULCH FROM FLINT CREEK DRAINAGE, 300 YD NORTH OF U.S. HIGHWAY 10A. IN DEERLODGE NATIONAL FOREST INFO FROM LAND.ST :(1971)

Comment (Commodity): UNVERIFIED REPORT OF PLATINUM

Comment (Deposit): VEIN IS IN A SHEAR ZONE AND CROPS OUT ON SURFACE. IT CUTS ACROSS BEDDING OF HOST ROCK. EAST OF VEIN ARE TWO FAULTS TRENDING NORTH-NORTHEAST WITH THE DOWNTHROW ON THE EAST SIDE. GRANITE CROPS OUT 0.5 MI NORTHEAST OF DEPOSIT. SECONDARY ENRICHED ORE IS IMPORTANT

Comment (Workings): MINE WAS DEVELOPED BY SERIES OF ADITS FOLLOWING VEIN WITH BOTH OPEN AND SQUARE SET STOPES RAISED FROM DRIFT LEVELS. MANY STOPES HAVE SINCE COLLAPSED CREATING STEEP SIDED OPEN PITS WITHIN THE AREA.

Comment (Geology): THE COUNTRY ROCK STRIKES NE AND DIPS 30-40 NW. INTRUDING IGNEOUS ROCK IS EXPOSED ABOUT 0.5 MI NORTHEAST.

References

Reference (Deposit): EARLL, F.N., 1972, MINES AND MINERAL DEPOSITS OF THE SOUTHERN FLINT CREEK RANGE, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY BULLETIN 84, P. 21-23.

Reference (Deposit): EMMONS, W.H., AND CALKINS, F.C., 1913, GEOLOGY AND ORE DEPOSITS OF THE PHILIPSBURG QUADRANGLE , MONTANA: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 78, P. 153, 234-235.

Reference (Deposit): U.S. GEOLOGICAL SURVEY-U.S. BUREAU OF MINES, MINERAL YEARBOOKS, 1905-1962.

Reference (Production): EARLL. USGS-USBM MINERAL YEARBOOKS, 1905-1962.

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.