The Invincible Prospect is a copper mine located in Santa Cruz county, Arizona at an elevation of 4,199 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: 4,199 Feet (1,280 Meters)
Commodity: Copper
Lat, Long: 31.50389, -110.75611
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.
Invincible Prospect MRDS details
Site Name
Primary: Invincible Prospect
Secondary: Blue Eagle and Exposed Reef Group
Commodity
Primary: Copper
Secondary: Gold
Location
State: Arizona
County: Santa Cruz
District: Harshaw 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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1875
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: IRREGULAR
Form: IRREGULAR
Structure
Type: R
Description: General Structure Common To Regional Formations Is A Sheeting Which Dips 40 Nnw
Type: L
Description: Rhyolite Cut By Series Of Joints Dipping 25-30 Nnw, In Which There Is A Concentration Of Almost Pure Iron Sulfides In Veinlets Or Bands (Maximum Width 1.5 In)
Alterations
Alteration Type: L
Alteration Text: Surface Oxidation To Unknown Depths
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: EARLY 1900'S ASSAY VALUES AVERAGED 1-3% CU AND ABOUT $1/TON AU
Materials
Gangue: Sulfur
Comments
Comment (Deposit): Discovery Year: LATE 1800'S
Comment (Deposit): SEE ALSO: BLUE EAGLE MINE, EXPOSED REEF MINES ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Geology): WALL ROCK TESTED FOR MANUFACTURE OF SULFURIC ACID, CONCENTRATIONS AVERAGING 33% FE AND 35-36% S.
Comment (Location): LOCATED ON NORTH SIDE OF ALUM GULCH; BLUE EAGLE GROUP LOCATED TO SW AND EXPOSED REEF MINE LOCATED ABOUT 1.0 MILE TO SOUTH ; INFO FROM LAND.ST :(1979)
Comment (Development): OWNERS AND OPERATORS INCLUDED THE IVANHOE MINING CO., INVINCIBLE CLAIM IS ONE OF 22 UNPATENTED LODE CLAIMS COMPRISING THE BLUE EAGLE AND EXPOSED REEF GROUP
Comment (Workings): DEVELOPMENTS INCLUDED 60-FT LONG TUNNEL RUNNING N25E INTO BASE OF RED MOUNTAIN
References
Reference (Deposit): SIMONS, FRANK S. 1974, GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1:48000)
Reference (Deposit): ADMR FILE DATA, EXPOSED REEF AND BLUE EAGLE GROUPS
Reference (Deposit): SCHRADER, FRANK C., 1915, MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTAINS, ARIZONA; USGS BULLETIN 582, P. 257
Reference (Deposit): USBM FILES, INVINCIBLE PROSPECT
Reference (Deposit): ABGMT FILES, STANTON B. KEITH
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.
