Four Claim Group

The Four Claim Group is a tungsten mine located in Fremont county, Colorado at an elevation of 8,100 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: Four Claim Group

Commodity

Primary: Tungsten

Location

State: Colorado
County: Fremont
District: Guffey, Currant Creek Area

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

Not available

Workings

Not available

Ownership

Owner Name: Kellogg And Green
Years: 1956 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Surface
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

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

Mineral Deposit Model

Model Name: Stratabound Precambrian sulfide, Colorado and Wyoming

Orebody

Form: LENSOID, TABULAR, POD-LIKE

Structure

Type: R
Description: Front Range; Thirty One Mile And Antelope Mountain Volcanic Centers

Type: L
Description: Currant Creek Fault And Related Faults

Alterations

Alteration Type: L
Alteration Text: Bulldozer Cuts Exposed Altered Material

Rocks

Name: Schist
Role: Host
Age Type: Host Rock Unit
Age Young: Paleoproterozoic

Name: Schist
Role: Host
Age Type: Host Rock
Age Young: Paleoproterozoic

Analytical Data

Analytical Data: 0.08-0.5% MN, 75-350 PPM BA, 15-75 PPM LI, 20-100 PPM MO, 100-500 PPM NI, 500-2500 PPM SR, 500-2500 PPM ZR

Materials

Ore: Scheelite
Ore: Powellite
Gangue: Clinozoisite
Gangue: Diopside
Gangue: Epidote
Gangue: Calcite
Gangue: Sphene
Gangue: Zoisite
Gangue: Chlorite
Gangue: Grossularite
Gangue: Thulite

Comments

Comment (Location): NORTH SIDE SMITH GULCH ABOUT 4 MILES FROM CURRANT CREEK, ABOUT ONE MILE WEST OF THE TALLAHASSEE (COUNTY) ROAD. ; INFO FROM LAND.ST :1976; 1:24000 QUADRANGLE MAP IS A 1981 EDITION

Comment (Commodity): SCHEELITE OCCURS AS CRYSTALS, GRAINS; FLUORESCES, YELLOW OR BLUE-WHITE;

Comment (Deposit): LOCAL BEDDING DIPS STEEPLY

Comment (Workings): SEVERAL BULLDOZER CUTS

References

Reference (Deposit): HEINRICH, E.W., 1981, PRECAMBRIAN TUNGSTEN AND COPPER-ZINC SKARN DEPOSITS OF SOUTH-CENTRAL COLORADO: CGS RESOURCE SERIES 21, 115 P.

Reference (Deposit): EPIS, R.C., WOBUS, R.A., SCOTT, G.R., 1979, GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, FREMONT AND PARK COUNTIES, COLORADO: USGS MAP I-1195, 1:62,500.

Reference (Deposit): BELSER, CARL, 1956, TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISON, LAKE, LARIMER, PARK, AND SUMMIT COUNTIES, COLORADO: USBM INFORMATION CIRCULAR 7748, P. 7-10.

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.