Campo Bonito Group

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

Name: Campo Bonito Group  

State:  Arizona

County:  Pinal

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.


Satelite image of the Campo Bonito Group

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


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