M & J Claim

The M & J Claim is a copper, silver, and lead mine located in Pitkin county, Colorado at an elevation of 7,201 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: M & J Claim

Commodity

Primary: Copper
Primary: Silver
Primary: Lead

Location

State: Colorado
County: Pitkin
District: Avalanche District

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
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: Central Colorado Trough, Grand Hogback Monocline, Piceance Basin, Elk Uplift

Type: L
Description: Roaring Fork Syncline, Snowmass Stock, Mt Sopris Intrusive Center, Crystal Embayment

Alterations

Not available

Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Pennsylvanian

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Analytical Data

Not available

Materials

Ore: Argentite
Ore: Stromeyerite
Ore: Galena

Comments

Comment (Location): ECKEL CITES GENERAL LOCATION ALONG BULLDOG CREEK, BUT EXACT LOCATION UNKNOWN. ELEV AND LAT-LONG GIVEN ARE FOR CONFLUENCE OF BULLDOG CREEK AND AVALANCHE CREEK IN SW SW 27.

Comment (Deposit): SULFIDES OCCUR AS STRINGERS AND SMALL MASSES IN MATRIX OF RECRYSTALLIZED SANDSTONE. PSEUDOEUTECTITIC INTERGROWTH OF STROMEYERITE AND GALENA; SUPERGENE COVELLITE REPLACES STROMEYERITE; SOME GRAPHIC INTERGROWTH OF COVELLITE AND CERUSSITE.

Comment (Deposit): SPRING BUTTE MINE AND M & J CLAIM ARE ONLY PROPERTIES DESCRIBED FOR AVALANCHE DISTRICT. EXACT LOCATION OF M & J CLAIM UNKNOWN. OTHER UNIDENTIFIED MINE IN SW SW SEC. 26, CLAIMS IN NW SEC. 27, NE SEC. 28, AND NE SEC. 34, ALL T 9 S, R 88 W. ; INFO.SRC : 1 PUB LIT

References

Reference (Deposit): ECKEL, E.B., 1961, MINERALS OF COLORADO--A 100-YEAR RECORD: USGS BULL. 1114, P. 312-313.

Reference (Deposit): TWETO, OGDEN, AND OTHERS, 1978, GEOLOGIC MAP OF THE LEADVILLE 1X2 QUADRANGLE, NORTHWESTERN COLORADO: USGS MAP I-999.

Colorado Mining Photos

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