The Campo Bonito Group is a tungsten mine located in Pinal county, Arizona at an elevation of 4,977 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: 4,977 Feet (1,517 Meters)
Commodity: Tungsten
Lat, Long: 32.55167, -110.72667
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.
Campo Bonito Group MRDS details
Site Name
Primary: Campo Bonito Group
Secondary: Maudina Mine
Secondary: Old Maudina Mine
Secondary: Other Claims
Commodity
Primary: Tungsten
Secondary: Gold
Tertiary: Lead
Tertiary: Molybdenum
Location
State: Arizona
County: Pinal
District: Oracle 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: Surface/Underground
Ownership
Owner Name: Edward H. Molson
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1908
Discovery Year: 1908
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: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Form: TABULAR TO MASSIVE
Structure
Type: R
Description: Block Faulting Trending Nnw. ; Reg.Trends: Post-Cretaceous Pre-Pliocene Thrusts And High Angle Normal And Reverse Faults. Cretaceous - Tertiary Intrusives And Consequent Faulting.
Type: L
Description: Mogul Fault Zone
Alterations
Not available
Rocks
Name: Diorite
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Analytical Data: ORE IS VIRTUALLY GANGUE FREE.
Materials
Ore: Wulfenite
Ore: Scheelite
Ore: Cerussite
Gangue: Quartz
Comments
Comment (Workings): Workings length measured "OFF MAIN SHAFT"
Comment (Location): INFO FROM LAND.ST :(1964)
Comment (Development): FURTHER EXPLORATION IN FAULT ZONES MAY BE USEFUL. ; ECON.COM: ACCESS FROM ORACLE ON MT. LEMMON ROAD.
Comment (Deposit): ORE IS SCHEELITE VEINLETS AND REPLACEMENT MASSES, GENERALLY GANGUE FREE, BUT ASSOCIATED WITH QUARTZ. VEINLETS RANGE FROM FRACTION OF INCH TO SEVERAL INCHES WIDE. MASSES RANGE FROM 1/4 INCH TO SEVERAL INCHES IN DIAMETER. BEST ORE IS BELOW 100 FT. LEVEL.
Comment (Workings): 175 FT. VERTICAL SHAFT WITH WORKING LEVELS 50, 100, 150, 175 FT. DEEP. TOTAL DRIFT FOOTAGE IS 1000. 95 OPENCUTS, 28 SHALLOW SHAFTS, 11 ADITS, 5 WINZES, 6 RAISES.
Comment (Geology): GEOL.DESC: PRINCIPAL ORE SHOOT FOUND IN SOUTHERN PORTION OF VERTICAL FAULT ZONE THAT STRIKES PARALLEL TO MOGUL FAULT (N OF W)
Comment (Deposit): CAMPO BONITO GROUP CONSISTS OF 29 PATENTED CLAIMS. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): DALE, V.B., 1959, U.S. BUREAU OF MINES REPT. OF INV. 5516
Reference (Deposit): WILSON, E.D., 1941, TUNGSTEN DEPOSITS OF ARIZONA, UNIV. OF ARIZ. BULL. 148
Reference (Deposit): 1959 COMPILE U.S. BUREAU MINES R.I. 5516
Reference (Production): DALE, V.B., 1959
Reference (Deposit): 1944 COMPILE STRATEGIC MINERALS INVESTIGATION
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.
