Blackjack Group

The Blackjack Group is a manganese mine located in Chaffee county, Colorado at an elevation of 8,999 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

Name: Blackjack Group  

State:  Colorado

County:  Chaffee

Elevation: 8,999 Feet (2,743 Meters)

Primary Mineral: Manganese

Lat, Long: 38.6175, -105.94611

Map: View on Google Maps

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.


Satelite image of the Blackjack Group

Blackjack Group MRDS details

Site Name

Primary: Blackjack Group


Commodity

Primary: Manganese
Secondary: Iron


Location

State: Colorado
County: Chaffee
District: Calumet District (Turret 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

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1933
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: Southern Mosquito Range

Type: L
Description: N-S-Trending Fault, Pleasant Valley Syncline


Alterations

Alteration Type: L
Alteration Text: Oxidation


Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian

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

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


Analytical Data

Not available


Materials

Ore: Limonite
Ore: Pyrolusite
Ore: Siderite


Comments

Comment (Location): NEAR TURRET ROAD, ABOUT 1 MILE SOUTH OF CALUMET MINE, SOUTH OF CAL UMET MOUNTAIN, SE OF RAILROAD GULCH, NEAR IRON KING MINE ; INFO FROM LAND.ST :1976


References

Reference (Deposit): OSBORN, E.F. AND RAINWATER, E.H., 1934, GEOLOGY OF THE CALUMET, COL ORADO MINING DISTRICT: ILLINOIS NORTHWESTERN UNIVERSITY UNPUBLISHED MA STER OF ARTS THESIS, P. 132-133

Reference (Deposit): SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOG IC MAP OF THE PUEBLO 10 X 20 QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP I-1022 1:250,000

Reference (Deposit): BEHRE, C.H., JR., OSBORN, E.F., RAINWATER, E.H., 1936, CONTACT ORE DEPOSITION AT THE CALUMET IRON MINE, COLORADO: ECONOMIC GEOLOGY, V. 31 , NO. 8, P. 804.