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Pine Tree Josephine Mine

Past Producer in Mariposa county in California, United States with commodity Gold
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Land status
  12. Production statistics
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10285214
MRDS ID M009558
MAS/MILS ID 0060430012
Record type Site
Current site name Pine Tree Josephine Mine
Alternate or previous names Queen Specimen, Josephine, Chicken Gulch, Succedo
Related records 10031010

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.12349, 37.59572 (WGS84)
Elevation 579
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bear Valley(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Merced(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004 S 017 E 08 SWSW California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Unknown
Gold Unknown
Gold Unknown

Nearby scientific data

Main Entrance (1) -120.12349, 37.59572
ListMap

Economic information

Ore body information

  • Strike N15W
    Dip 70E
    Length 1200M
    Width 120M
    Field Value
    MAS Matrix # 2
    MAS Column # 1
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 TABULAR
    Primary mode of Origin OTHER
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. UNKNOWN
    Strike And Dip N15W:70E
    Date of Last Modification 890724
  • Strike N15W
    Dip 70E
    Length 400M
    Width 120M
    Field Value
    MAS Matrix # 3
    MAS Column # 1
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 TABULAR
    Primary mode of Origin OTHER
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. UNKNOWN
    Strike And Dip N15W:70E
    Date of Last Modification 890724
  • Strike N15W
    Dip 70E
    Length 500M
    Width 120M
    Field Value
    MAS Matrix # 4
    MAS Column # 1
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 TABULAR
    Primary mode of Origin OTHER
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. UNKNOWN
    Strike And Dip N15W:70E
    Date of Last Modification 890724
  • Area 1800HA
    Field Value
    Total Surface Area (HA) 1800
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Discovery year 1848
Year of first production 1848
Milling method Flotation

Land status

Ownership category Private

Production statistics

  • Year 1944
    Period 1933 To 1944
    Description Recorded Production - 1933 To 1944 Ounces Of Gold

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Demonstrated 8662707mt ore
    Total resources 8662707mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.23 g/mt Gold Major 1993

Comments on the reserve resource information

  • PROPOSED OPERATION WOULD INVOLVE FLOTATION/ROASTING OF CONCS. ON SITE AND CIL EXTRACTION OF GOLD. PERMITTING BEING HELD UP (AS OF MID-1989) MAINLY DUE TO PROP- OSED USE OF ROASTING ON-SITE. PROPOSED OPERATION COVERS THREE DEPOSITS: PINE TREE-JOSEPHINE, QUEEN SPECIMEN, AND CHICKEN GULCH ZONE.
  • MINING OF PINE TREE JOSEPHINE ORE. FOR MEASURED PINE TREE RESERVES SEQ "Q" DATA SET MATRIX 2, COLUMN 1. PINE TREE/JOSEPHINE MEASURED RESERVES. MINING OF QUEEN SPECIMEN ORE. FOR INDICATED QUEEN SPECIMEN ORE SEE "Q" DATA SEE, MATRIX 3, COLUMN 1. QUEEN SPECIMEN INDICATED RESERVES. MINING OF BALANCE OF QUEEN SPECIMEN ORE AND 2/3 OF CHICKEN GULCH ORE MINING OF BALANCE OD CHICKEN GULCH RESERVES. FOR CHICKEN GULCH DRILL INDICATED RESERVES, SEE MATRIX 4 COLUMN 1. CHICKEN GULCH INDICATED RESERVES.

Workings at the site

  • Type of workings Surface
    Area 300HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 81.5
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 3000
    Unit Production Cost 8.46
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 75
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 7.94
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 3
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 75
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 7.28
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 4
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 75
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 7.19
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Surface
    Area 300HA
    Field Value
    MAS Development Schedule # 2
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 81.5
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 3000
    Unit Production Cost 8.46
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 2
    Mining Record # 2
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 75
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 7.94
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 2
    Mining Record # 3
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 75
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 7.28
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 2
    Mining Record # 4
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 75
    Avg. Overburden Thickness 1
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 6
    Max. Pit Slope (degrees) 52
    Capacity 7256
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 7.19
    Units of Production $/MT ORE
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989

Reference information

Bibliographic references

  • Reserve-Resource

    RANDOL MINING DIRECTORY, 1996/97, P164.

General comments

Subject category Comment text
Deposit PROPERTY IS LISTED AS ON STANDBY BY RANDOL, 1996/97:

Reporter information

Type Date Name Affiliation Comment
Reporter 17-JUN-97 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site

Authoritative California resources

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