Orphan Boy Mine

Producer in Pinal county in Arizona, United States with commodities Lead, Silver, Copper, Zinc, Gold
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 10048303
MRDS ID M899861
Record type Site
Current site name Orphan Boy Mine
Alternate or previous names Sunset, Silver Queen
Related records 10137350

Geographic coordinates

Geographic coordinates: -111.16098, 33.20759 (WGS84)
Elevation 1036
Relative position 5.2 MILES NE OF MINERAL MOUNTAIN (ELV.3351)

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mineral Mountain(quadrangle 1:24,000 scale)

Mesa(quadrangle 1:100,000 scale)

Mesa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Gila(hydrologic unit)

Middle Gila(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Tonto 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 002S 012E 31 SW OF SW OF SW Arizona

Comments on the location information

  • INFO FROM LAND.ST :(1978)

Commodities

Commodity Importance
Lead Primary
Silver Secondary
Copper Secondary
Zinc Critical Secondary
Gold Tertiary

Materials information

Materials Type of material
Anglesite Ore
Argentite Ore
Galena Ore
Sphalerite Ore
Calcite Gangue
Limonite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Madera Diorite;Pinal Schist
    Rock description Madera Diorite;Pinal Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -111.16098, 33.20759

Economic information

Geologic structures

Type of structure Regional
Structure description Tert Rhyolite And Quartz Latite Intrusions And Prec Diorite Near And East Of Mine
Type of structure Local
Structure description Madera Diorite In Nw Trending Outcrops, Tertiary Rhyolite At Mine And 1/4 Mile East

Ore body information

  • General form TABULAR
    Strike E TO W
    Dip 60 SW
    Width 9.14M

Controls for ore emplacement

  • Fissure Vein, Nw Trending

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1924
Year of last production 1963

Mining district

District name Mineral Hill District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner K. Pomeroy, Az, Az. Silver Inc. B. Sweet , V. Lamb ,
    First year 1943
  • Type Owner
    Owner Mineral Mountain Mining And Milling Co.
    First year 1948

Workings at the site

  • Type of workings Surface/Underground
    Length 45.72M

Comments on the workings information

  • A CROSSCUT TUNNEL OPENS INTO THE BOTTOM OF A SMALL PIT. LARGEST PIT IS 30 FT LONG, 10 FT WIDE, AND 30 FT DEEP.

Comments on development

  • GROUP OF 4 UNPATENTED CLAIMS LATER (1948) BECAME PART OF THE MINERAL MOUNTAIN MINING AND MILLING CO. PROPERTIES.

Reference information

Bibliographic references

  • Deposit

    USBM-ABGMT PRODUCTION DATA FILE

  • Deposit

    ABGMT CLIPPINGS FILA DATA

  • Deposit

    ARIZONA DEPARTMENT OF MINERAL RESOURCES FILE DATA

  • Deposit

    USBM FILE DATA - CLUSTER #776

  • Deposit

    USGS OPEN FILE REPORT 78-468, 1978.

General comments

Subject category Comment text
Deposit TWO PARALLEL MINERALIZED SHEAR ZONES IN RHYOLITE, THEY ARE SEPARATED BY A SMALL INTRUSIVE MASS OF MONZONITE. MINERALIZATION IS SIMILAR TO THAT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Laraba, Peter (Gest, Don E.) Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

External references

Authoritative Arizona resources

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