The Isle Royal Mine is a copper mine located in Pima county, Arizona at an elevation of 4,800 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: 4,800 Feet (1,463 Meters)
Commodity: Copper
Lat, Long: 31.85778, -110.76722
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.
Isle Royal Mine MRDS details
Site Name
Primary: Isle Royal Mine
Secondary: Isle Royale
Commodity
Primary: Copper
Secondary: Silver
Tertiary: Gold
Tertiary: Molybdenum
Tertiary: Tungsten
Location
State: Arizona
County: Pima
District: Helvetia-Rosemont District
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
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1912
Time Period: 1880-1912
Material type: ORE CU AG
Description: Cp_Grade: ^3% Cu, 1 Oz/T Ag
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1882
Discovery Method: 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
Form: PIPE
Structure
Type: R
Description: Homoclinal, Tilting And Broad Open Folds In S, Extensive Faulting I N N
Type: L
Description: Nw Striking Thrust Fault With Limestone In Footwall And Granite In Hanging Wall, Normal Faulting
Alterations
Alteration Type: L
Alteration Text: Pyrite-Chalcopyrite-Gossan; Skarn
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Pennsylvanian
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Chalcopyrite
Ore: Molybdenite
Ore: Chalcocite
Ore: Powellite
Comments
Comment (Commodity): MALACHITE AND AZURITE FOUND IN SUPERGENE ZONE, SECONDARY AFTER PYR ITE AND CHALCOPYRITE
Comment (Development): ANACONDA EXPLORED AREA IN 1971 SEEKING POTENTIAL PORPHYRY COPPER DEPOSIT IN INTRUSIVE QUARTZ LATITE
Comment (Deposit): ORE BODIES ON CONTACT BETWEEN INTRUSIVE AND LIMESTONE
Comment (Workings): SHAFT AND 4000 FT WORKINGS ON 7 LEVELS
Comment (Deposit): THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050044 WITH RE CORD M030533 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEOD ORE, USGS ; INFO.SRC : 1 PUB LIT
Comment (Deposit): Discovery Year: EARLY 1880'S
References
Reference (Deposit): CREASEY, 1955, USGS BULL 1027-F
Reference (Deposit): KEITH, 1974, ABM BULL 189
Reference (Production): KEITH, 1974
Reference (Deposit): SCHRADER, 1915, USGS BULL 582
Reference (Deposit): ABM, 1971, FIELDNOTES V. 1, NO. 2
Reference (Deposit): DREWES, 1971, USGS MAP I-613
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.
