The Old Chief Mine is a copper and silver mine located in Pinal county, Arizona.
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.
Old Chief Mine MRDS details
Site Name
Primary: Old Chief Mine
Commodity
Primary: Copper
Primary: Silver
Location
State: Arizona
County: Pinal
District: Owl Head 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
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Propylitic
Rocks
Name: Diabase
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Analytical Data
Analytical Data: ASSAY REPORT FOR WILLIAM EWING (2-3-72) OF 5 UNSPECIFIED ORE SAMPLES GAVE 1.6 TO 7.2% CU, 1.7 TO 21.5 OZ PER TON AU (ON 2 OF THE 5 SAMPLES)
Materials
Ore: Chrysocolla
Ore: Malachite
Ore: Bornite
Comments
Comment (Deposit): NO OBVIOUS MINERALIZATION AT SURFACE OF MAIN SHAFT. CHRYSOCOLLA IN OUTCROP ON THE PROSPECT PIT TO THE NW WITH MORE CHALCOPYRITE-LIKE GOSSAN. BORNITE IN VEINS CUTTING VOLCANIC-LOOKING MATERIAL.
Comment (Workings): MAIN SHAFT HAS GREATER THAN 25,000 CUBIC FEET OF MATERIAL
Comment (Location): INFO FROM LAND.ST :(1964)
References
Reference (Other Database): CIMRI
Reference (Deposit): N.G. BANKS, FIELD EXAM
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.
