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Campo Bonito Group

Past Producer in Pinal county in Arizona, United States with commodities Tungsten, Gold, Lead, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10039520
MRDS ID M050212
Record type Site
Current site name Campo Bonito Group
Alternate or previous names Maudina Mine, Old Maudina Mine, Other Claims

Geographic coordinates

Geographic coordinates: -110.72735, 32.55178 (WGS84)
Elevation 1517
Relative position 10.5 MILES SSW OF TIGER ON NE FLANK OF SANTA CATALINA MOUNTAINS. 1 MI. SE OF CAMPO BONITO.

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Campo Bonito(quadrangle 1:24,000 scale)

Mammoth(quadrangle 1:100,000 scale)

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Arizona Pinal

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 10S 16E 20 Arizona

Comments on the location information

  • INFO FROM LAND.ST :(1964)

Commodities

Commodity Importance
Tungsten Critical Primary
Gold Secondary
Lead Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Cerussite Ore
Scheelite Ore
Wulfenite Ore
Quartz Gangue

Analytical data

Result ORE IS VIRTUALLY GANGUE FREE.

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Apache Group
    Rock description Apache Group

Nearby scientific data

(1) -110.72735, 32.55178
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure 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 of structure Local
Structure description Mogul Fault Zone

Ore body information

  • General form TABULAR TO MASSIVE
    Strike N OF W
    Dip VERTICAL
    Plunge 45
    Plunge direction E
    Length 15.24M
    Width 4.57M
    Depth to top 0M

Controls for ore emplacement

  • Fault Zone

Comments on the geologic information

  • GEOL.DESC: PRINCIPAL ORE SHOOT FOUND IN SOUTHERN PORTION OF VERTICAL FAULT ZONE THAT STRIKES PARALLEL TO MOGUL FAULT (N OF W)

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1908
Year of first production 1908
Production years 1915-1916

Mining district

District name Oracle District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Edward H. Molson

Workings at the site

  • Type of workings Surface/Underground
    Length 1175M
    Overall depth 175M
    Overall length 15.24M
    Overall width 4.57M

Comments on the workings information

  • 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.
  • Workings length measured "OFF MAIN SHAFT"

Comments on development

  • FURTHER EXPLORATION IN FAULT ZONES MAY BE USEFUL. ; ECON.COM: ACCESS FROM ORACLE ON MT. LEMMON ROAD.

Reference information

Bibliographic references

  • Deposit

    DALE, V.B., 1959, U.S. BUREAU OF MINES REPT. OF INV. 5516

  • Deposit

    WILSON, E.D., 1941, TUNGSTEN DEPOSITS OF ARIZONA, UNIV. OF ARIZ. BULL. 148

  • Deposit

    1944 COMPILE STRATEGIC MINERALS INVESTIGATION

  • Deposit

    1959 COMPILE U.S. BUREAU MINES R.I. 5516

  • Production

    DALE, V.B., 1959

General comments

Subject category Comment text
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.
Deposit CAMPO BONITO GROUP CONSISTS OF 29 PATENTED CLAIMS. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1972 Bergquist, Joel R. U.S. Geological Survey
Updater 01-MAR-1981 Harner, Joy L. (Peterson, Jo) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.