Joker Lode Iron Deposit

The Joker Lode Iron Deposit is a iron mine located in Fremont county, Colorado at an elevation of 8,799 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: Joker Lode Iron Deposit
Secondary: Iron Mine
Secondary: Iron Age Mine
Secondary: Long Gulch Lode Claims

Commodity

Primary: Iron

Location

State: Colorado
County: Fremont
District: Long Gulch 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

Type: Surface

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1954
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

Not available

Orebody

Not available

Structure

Type: R
Description: Waugh Mountain Volcanic Center, Thirtynine Mile Volcanic Field

Type: L
Description: Cotopaxi Fault, Texas Creek Fault; Shear Zones

Alterations

Alteration Type: L
Alteration Text: Oxidation

Rocks

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

Analytical Data

Analytical Data: ALSO PRESENT ARE: CU, AG, GA, ZR, TI, PB, V, CR, CO, NI
Analytical Data: 46.2 % FE, 0.2 % MN, 0.04 % P, 0.11 % S, 24.6 % SI

Materials

Ore: Hematite
Gangue: Epidote
Gangue: Chlorite

Comments

Comment (Workings): PROSPECT PIT DUG PARALLEL TO STRIKE

Comment (Location): EAST OF RED HILL; ACCURACY TO ABOUT 0.5 MILE; ON NE SLOPE OF LONG GULCH, 2100 FT NE OF SE CORNER, SECTION 7 ; INFO FROM LAND.ST :(1976)

Comment (Commodity): VERY SILICEOUS, BLUE-BLACK HEMATITE

Comment (Development): TRIAL SHIPMENT TO COLORADO FUEL AND IRON CORP. AT PUEBLO PROVED TOO SILICEOUS FOR USE AS IRON ORE

References

Reference (Deposit): EPIS, R.C., WOBUS, R.A. AND 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): BUTLER, J.R., 1954, GEOLOGY OF AN AREA NORTH OF COTOPAXI, FREMONT COUNTY, COLORADO: M.S. THESIS, UNIVERSITY OF COLORADO; P. 47-48

Reference (Deposit): HARRER, C.M. AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO: USBM INFORMATION CIRCULAR 7918, P. 31-32.

Colorado Mining Photos

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