Cowboy Tunnel

The Cowboy Tunnel is a copper mine located in Graham county, Arizona at an elevation of 6,601 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: Cowboy Tunnel
Secondary: Cobre Grande Mine

Commodity

Primary: Copper
Secondary: Zinc

Location

State: Arizona
County: Graham
District: Aravaipa

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

Type: Located Claim

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Mining Method: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Deposit): SEVERAL WORKINGS IN THIS AREA ARE REFERRED TO AS THE COBRE GRANDE MINE. THE COWBOY TUNNEL HAD A SMALL AMOUNT OF COPPER PRODUCTION. MINERALS OCCUR IN IRREGULAR REPLACEMENT ZONES IN LIMESTONE, CHALCOPYRITE, CHALCOCITE, CHALCANTHITE, HEMATITE, PYRITE. ABOUT 600 FT SOUTHEAST OF THE COWBOY TUNNEL IS AN ADIT CAVED AT 205 FT, REPORTED TO BE OVER 700 FT LONG, MOSTLY BARREN ALTERED ROCK. A NEARBY PIT EXPOSES A SKARN ZONE.

References

Reference (Deposit): SIMONS, F. S., 1964, GEOLOGY OF THE KLONDYKE QUADRANGLE,

Reference (Deposit): GRAHAM AND PINAL COUNTIES, ARIZONA: U.S.G.S. PROFESSIONAL

Reference (Deposit): PAPOER 461, P. 135-136, PLATE 1.

Reference (Deposit): USGS COBRE GRANDE MTN. QUAD

Reference (Deposit): ADMR FILES

Reference (Deposit): AND STANLEY MINING DISTRICTS, GRAHAM COUNTY ARIZONA, USGS

Reference (Deposit): BULLETIN 763, P. 102-103

Reference (Deposit): BROWN, S. D., 1993, MINERAL APPRAISAL OF THE CORONADO

Reference (Deposit): NATIONAL FOREST, PART 10, SANTA TERESA MOUNTAINS UNIT,

Reference (Deposit): GRAHAM COUNTY, ARIZONA: USBM OPEN-FILE REPORT ??-93, 53 P

Reference (Deposit): ROSS, C. P., 1925, GEOLOGY AND ORE DEPOSITS OF THE ARAVAIPA

Arizona Gold

"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.