The Last Chance Mine is a copper mine located in Pinal county, Arizona at an elevation of 2,989 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
Elevation: 2,989 Feet (911 Meters)
Commodity: Copper
Lat, Long: 32.69028, -111.06972
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.
Last Chance Mine MRDS details
Site Name
Primary: Last Chance Mine
Secondary: Ferguson
Secondary: Owens
Secondary: Last Chance #2
Secondary: Ebeling Copper
Commodity
Primary: Copper
Secondary: 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
Type: Surface
Ownership
Owner Name: Ferguson, Mrs. Ethel
Years: 1943 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1929
Year Last Production: 1939
Discovery Method: Ore-Mineral In Place
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
Type: R
Description: Andesite Is Surrounded By Pinal Schist
Alterations
Not available
Rocks
Name: Andesite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Chalcocite
Comments
Comment (Deposit): THIS RECORD CONTAINS DATA FROM DUPLICATE RECORD D003035 OF J. WILLIAM HASLER WHICH HAS BEEN DELETED FROM MRDS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Location): WITHIN SIGHT OF U.S. 80, NE OF HIGHWAY, WELL AT SITE ; INFO FROM LAND.ST :(1979)
Comment (Development): 60 CLAIMS. 250 FT DRILL HOLE IS NOW WELL, OTHER DRILLING REPORTED, INCLUDING CHURN DRILLING, 1918. OPERATORS INCLUDED J.J. OWENS
Comment (Deposit): ORE IN FRACTURES AND IN AREAS OF HOST ANDESITE, WITH SECONDARY OXIDATION COMMON
Comment (Workings): 250 FT DRILL HOLE, BUT DEPOSIT IS SURFACE ONLY IN PITS. ONE PIT, 60 FT LONG, 17 FT. DEEP. ONE PIT 40 FT. LONG, 4 FT DEEP. ONE VERTICAL PIT, 20 FT DEEP
Comment (Geology): DMEA FILES REPORTED PREC GRANITE-GRANODIORITE AS THE HOST ROCK.
References
Reference (Deposit): ARIZONA DEPARTMENT OF MINERAL RESOURCES FERGUSON COPPER AND LAST CHANCE 2 FILES
Reference (Deposit): USGS MISCELLANEOUS FIELD STUDIES MAP MF 864
Reference (Other Database): CIMRI
Reference (Deposit): ABGMT-USBM PRODUCTION DATA FILES
Reference (Other Database): DMEA
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.
