Strawberry Mine

The Strawberry Mine is a tungsten mine located in Madera county, California at an elevation of 7,530 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

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.

Site Name

Primary: Strawberry Mine
Secondary: Strawberry-Macdougald Tungsten
Secondary: Strawberry Tungsten Mine
Secondary: Strawberry Tungsten Deposits

Commodity

Primary: Tungsten
Secondary: Molybdenum

Location

State: California
County: Madera
District: Jackass

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

Type: Private Lease
Type: Patented
Type: Located Claim

Workings

Type: Underground

Ownership

Owner Name: Teledyne Tungsten Corp., Fresno, Ca., 93703
Company ID: 403143
Percent: 99.00
Home Office: California
Info Year: 1981

Owner Name: J. E. Cobb And J. A. Mcdougald, North Fork, Ca.
Company ID: 403143
Percent: 1.00
Home Office: California
Info Year: 1981

Production

Year: 1
Description: Mined Treated % Wo3 Pounds Units Wo3 Lbs/Yr % Wo3 Recovered
Description: Tons Tons Concentrate Produced Shipments Units Wo3
Year: 1945
Material type: Wo3
Description: 112,000 3,640 120000 Lbs/Yr 65.39 3,640
Year: 1944
Mined: 10899.030 mt
Material type: Wo3
Description: 11,074 11,074 1.41 218,000 6,328 262000 Lbs/Yr 57.80 7,589
Year: 1943
Mined: 4709.390 mt
Material type: Wo3
Description: 4,785 4,785 3.25 288,000 9,232 244000 Lbs/Yr 65.68 7,971
Year: 1948
Mined: 2622.890 mt
Material type: Wo3
Description: 2,665 2,665 1.85 106,000 3,483 106000 Lbs/Yr 66.34 3,483
Year: 1954
Mined: 17577.810 mt
Material type: Wo3
Description: 17,860 17,812 0.60 522,025 17,019 522025 Lbs/Yr 65.20 17,019
Year: 1953
Mined: 12019.050 mt
Material type: Wo3
Description: 12,212 12,212 160,586 5,374 160586 Lbs/Yr 66.80 5,374
Year: 1952
Mined: 10511.250 mt
Material type: Wo3
Description: 10,680 10,680 0.63 136,000 4,634 136000 Lbs/Yr 68.60 4,634
Year: 1951
Mined: 10704.150 mt
Material type: Wo3
Description: 10,876 10,845 0.95 180,000 6,406 180000 Lbs/Yr 71.53 6,406
Year: 1950
Mined: 2919.130 mt
Material type: Wo3
Description: 2,966 2,821 1.00 80,000 2,391 80000 Lbs/Yr 60.40 2,391
Year: 1949
Mined: 1419.210 mt
Material type: Wo3
Description: 1,442 1,442 2.19 72,000 2,380 72000 Lbs/Yr 66.11 2,380
Year: 1946
Material type: Wo3
Description: 80,000 2,528 80000 Lbs/Yr 63.21 2,528
Year: 1983
Mined: 84450.260 mt
Material type: Wo3
Description: 85,806 85,806 5,379,720 56,632 5379699 Lbs/Yr 21.05 56,632
Year: 1982
Mined: 44666.930 mt
Material type: Wo3
Description: 45,384 45,384 5,217,299 68,764 5217300 Lbs/Yr 26.36 68,764
Year: 1977
Mined: 40184.880 mt
Material type: Wo3
Description: 40,83
Year: 1968
Mined: 14523.830 mt
Material type: Wo3
Description: 14,757 14,757 1.13 460,614 13,952 460600 Lbs/Yr 60.58 13,952
Year: 1967
Mined: 18505.910 mt
Material type: Wo3
Description: 18,803 18,803 0.81 540,000 11,694 540000 Lbs/Yr 43.31 11,694
Year: 1966
Mined: 22332.480 mt
Material type: Wo3
Description: 22,691 22,691 1.00 692,000 16,456 692000 Lbs/Yr 40.38 16,456
Year: 1964
Material type: Wo3
Description: 591622 Lbs 70.88 20,981
Year: 1962
Mined: 18248.050 mt
Material type: Wo3
Description: 18,541 18,541 0.98 624,834 14,452 205480 Lbs 39.90 4,102
Year: 1984
Mined: 113675.100 mt
Material type: Wo3
Description: 115,500 115,500 7,513,980 76,230 7513899 Lbs/Yr 20.29 76,230
Year: 1978
Mined: 71065.140 mt
Material type: Wo3
Description: 72,206 92,206 5,532,400 27,662 5532399 Lbs/Yr 10.00 27,662
Year: 1961
Mined: 13658.720 mt
Material type: Wo3
Description: 13,878 13,878 0.86 419,722 11,933
Year: 1960
Material type: Wo3
Description: 430348 Lbs/Yr 50.01 10,760
Year: 1960
Mined: 11461.000 mt
Material type: Wo3
Description: 11,645 11,645 1.58 526,000 12,530 56581 Lbs/Yr 29.55 836
Year: 1956
Mined: 12035.780 mt
Material type: Wo3
Description: 12,229 12,229 0.50 120,213 4,280 120213 Lbs 71.30 4,280
Year: 1956
Mined: 2324.680 mt
Material type: Wo3
Description: 2,362 2,362 0.50 23,069 827 23069 Lbs 71.60 827
Year: 1955
Material type: Wo3
Description: 295,895 9,848 295895 Lbs 66.60 9,848
Year: 1955
Mined: 22548.020 mt
Material type: Wo3
Description: 22,910 22,910 0.62 117,554 4,206 117554 Lbs 71.80 4,206
Year: 1981
Mined: 109379.060 mt
Material type: Wo3
Description: 111,135 111,135 6,560,740 73,349 6560699 Lbs/Yr 22.36 73,349
Year: 1980
Mined: 95567.780 mt
Material type: Wo3
Description: 97,102 97,102 5,006,834 64,087 5006800 Lbs/Yr 25.60 64,087
Year: 1979
Mined: 53157.620 mt
Material type: Wo3
Description: 54,011 61,452 3,163,920 40,543 3163899 Lbs/Yr 26.00 40,543

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: tungsten skarn
Operation Type: Underground
Mining Method: Open Stope - Sublevel
Milling Method: Gravity
Year First Production: 1943
Discovery Year: 1941
Years of Production:
Organization:
Significant: Y

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR

Structure

Type: R
Structure: Sierra Nevada Batholith

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Powellite
Ore: Scheelite
Gangue: Arsenopyrite
Gangue: Plagioclase
Gangue: Calcite
Gangue: Wollastonite
Gangue: Epidote
Gangue: Garnet
Gangue: Hornblende
Gangue: Idocrase
Gangue: Magnetite
Gangue: Orthoclase
Gangue: Pyrite
Gangue: Pyroxene
Gangue: Quartz
Gangue: Sphalerite
Unknown: Molybdenite

Comments

Comment (Deposit): WATER IS OBTAINED FROM A 91 M WELL. POWER IS GENERATED AT THE SITE. FIVE KM OF ACCESS ROAD WAS CONSTRUCTED FROM GRANITE CREEK CROSSING, TO THE MINE IN 1943.

Comment (Reserve-Resource): RESERVES DEPLETED ACCORDING TO TELEDYNE UPON SHUTDOWN. HOWEVER, SOME UNDERGROUND RESERVES, REC. MATERIALS IN TAILS STILL THERE.

Comment (Reserve-Resource): PERMANENT SHUTDOWN, MID - DECEMBER 1986. TELEDYNE TUNGSTEN CORP. GAVE UP OR DID NOT RENEW LEASE. MR. DON SMITH, NORTH FORK, CA REPRESENTS THE OWNERS (SMITH FAMILY). U.S. BUREAU of MINES FILES STATE THAT STRAWBERRY RESERVES DEPLETED AT TIME OF SHUTDOWN. HOWEVER NEGOTIATIONS TO REOPEN MINE, AND REWORK AND RECLAIM TAILS FAILED WHEN STATE (CALIFORNIA) REQUIRED BONDING THAT POTENTIAL NEW OPERATOR FELT WAS PROHIBITIVE. NO PUBLIC INFO AVAILABLE ON ORE GRADES/RESERVES, OR MATERIALS IN TAILINGS.

Comment (Location): 31 MI. NE BY MOUNTAIN ROAD FROM BASS LAKE

References

Reference (Deposit): KRAUSKOPF, KONRAD B. TUNGSTEM DEPOSITS OF MADERA, FRESNO, AND TULARE COUNTIES, CALIFORNIA. CALIF. DIV. OF MINES SPECIAL REPORT 35, 1953, 82 PP.

Reference (Deposit): TRENGOVE, RUSSEL R. INVESTIGATION OF THE STRAWBERRY TUNGSTEN DEPOSIT, MADERA COUNTY, CALIF. U. S. BUMINES R.I. 4543, 1949, 19 PP.

Reference (Deposit): PECK, D. L. GEOLOGIC MAP OF THE MERCED PEAK QUADRANGLE, CENTRAL SIERRA NEVADA, CALIFORNIA. U. S. GEOL. SURV. GEOLOGIC QUADRANGLE MAP, 1980, MAP GQ-1531.

Reference (Deposit): NOKLEBERG, W. J., ZONED SKARNS OF THE STRAWBERRY TUNGSTEN MINE ROOF PENDANT, CENTRAL SIERRA NEVADA, CALIFORNIA. GEOL. SOC. OF AMER. ABSTRA., VOL. 3, NO. 2, 1971, PP. 171-172.

Reference (Deposit): NOKLEBERG, W. J., STRATIGRAPHY AND STRUCTURE OF THE STRAWBERRY MINE ROOF PENDANT CENTRAL SIERRA NEVADA, CALIFORNIA. U. S.GEOL. SURV. PP. 1154, 1981, 18 PP.

Reference (Deposit): WYANT, DONALD G. AND MAX P. ERICKSON. TUNGSTEN DEPOSITS IN MADERA COUNTY CALIFORNIA. U. S. BUMINES PRELIMINARY REPORTS ON TUNGSTEN DEPOSITS IN MADERA COUNTY, 1942, 28 PP.

Reference (General): LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.

Reference (Deposit): NOKLEBERG, W. J. GEOLOGIC SETTING, PETROLOGY, AND GEOCHEMISTRY OF TUNGSTEN - BEARING SKARNS AT THE STRAWBERRY MINE, CENTRAL SIERRA NEVADA, CALIF. ECON. GEOL., VOL., 76, NO. 1, 1981, PP. 111 - 133.

Reference (Deposit): NOKLEBERG, W. J.. GEOLOGY OF THE STRAWBERRY MINE ROOF PENDANT, CENTRAL SIERRA NEVADA, CALIFORNIA. SANTA BARBARA, UNIVERSITY OF CALIFORNIA, 1970, PHD DISSERTATION, 156 P.

California Gold

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