Twin Creeks Chimney & Rabbit Ck's

Site Name

Primary: Twin Creeks Chimney & Rabbit Ck's
Secondary: Discovery Pit
Secondary: Chimney Creek
Secondary: Rabbit Creek
Secondary: North Pit
Secondary: South Pit

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Commodity

Primary: Gold
Secondary: Silver
Tertiary: Mercury

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Location

State: Nevada
County: Humboldt
District: Potosi District

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Land Status

Land ownership: Mixed
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.

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Holdings

Type: Minerals Only
Type: Federal Lease

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Workings

Type: Surface

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Ownership

Owner Name: Consolidated Goldfields
Percent: 100.0
Info Year: 1987
Years: 1987 - 1994

Owner Name: Gold Fields Mining Corp. (Sub Of Consolidated Goldfield)
Company ID: 2670110
Info Year: 1987
Years: 1987 - 1994

Owner Name: Santa Fe Pacific Minerals Corp. (Sfpm) (Owner Of Sfpg)
Percent: 100.0
Home Office: New Mexico
Info Year: 1994
Years: 1993 -

Owner Name: Santa Fe Pacific Gold Corp. (Sfpg)
Percent: 100.0
Home Office: New Mexico
Info Year: 1995
Years: 1994 -

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Production

Year: 1996
Description: Ore Milled @ 0.085 Opt 2768000 St Ore
Year: 1996
Description: Total Gold Production 459084 Tr Oz/Yr
Year: 1995
Description: Ore Milled @ 0.087 Opt 2401000 St Ore
Year: 1995
Description: Heap Leach Ore @ 0.020 Opt 17022000 St Ore
Year: 1995
Description: Total Gold Produced 424467 Tr Oz/Yr
Year: 1994
Description: Ore Milled @ 0.105 Opt 2212000 St Ore
Year: 1994
Description: Heap Leach Ore @ 0.026 Opt 16770000 At Ore
Year: 1994
Description: Total Gold Production 501891 Tr Oz/Yr
Year: 1993
Description: Au 346239 Oz
Year: 1992
Description: Au 161000 Oz
Year: 1991
Description: Au 228065 Oz
Year: 1991
Description: Ag 100000 Oz
Year: 1989
Description: Gold (From 2,266,000 Mt Ore) 230000 Oz
Year: 1989
Description: Mill 6,922,248 Gm Au
Year: 1988
Description: Gold 150000 Oz
Year: 1966
Description: Heap Leach Ore @ 0.022 Opt 18238000 St Ore

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Deposit

Record Type: Site
Operation Category: Plant
Plant Type: Leach
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Heap Leach-Agglomerate-Carbon Column-Merrill-Crowe
Year First Production: 1987
Discovery Year: 1985
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y

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Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin

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Mineral Deposit Model

Not available

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Orebody

Not available

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Structure

Not available

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Alterations

Not available

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Rocks

Not available

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Analytical Data

Not available

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Materials

Not available

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Comments

Comment (Economic Factors): OPERATION HAS APPROXIMATELY15 YEARS OF LIKE AS OF 07/95.

Comment (Environmental Factors): THERE IS CONCERN OF ACID GENERATING POTENTIAL OF WASTE ROCK, WHICH HOWEVER CONTAINS 100 TO 640 LB/TON LIMESTONE. AT PRESENT THE WASTE CONTAINS 79,458 OZ AU AT A GRADE OF 0.005 OZ/TON. HEAP HAS NOT BEEN COMPLETELY LEACHED. 58,508 OZ OF AU PRESENTLY REMAIN IN HEAP MATERIAL.

Comment (Exploration): DRILLING IN SECTION 30 TO EXPAND MINE.

Comment (Names): THE CHIMNEY CREEK AND RABBIT CREEK MINES WERE COMBINED INTO THIS OPERATION, THE TWIN CREEKS MINE, IN 1993. SEE MAS FILES: OPEN PIT & HEAP LEACH OPERATIONS: RABBIT CREEK MINE (0320130504), AND CHIMNEY CREEK MINE, (0320130511): MILS DATA ONLY (LATS/LONG ARE APPROX).

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References

Reference (Production): SANTA FE PACIFIC GOLD CORP., 1995, FORM 10-K REPORT, P 10.

Reference (Deposit): ENG. AND MIN. J., V. 190, NO. 1, JAN. 1989, PP. 33-37.

Reference (Deposit): MCCARTHY, J. CHIMNEY CREEK GAINS CONTROL ROOM FLEXIBILITY.

Reference (Deposit): U.S. GEOL. SURV. PROF. PAPER 431, 1964, 128 PP.

Reference (Deposit): OF THE OSGOOD MOUNTAIN QUADRANGLE, HUMBOLDT COUNTY, NEVADA.

Reference (Deposit): HOTZ, P. E., AND R. WILLDEN. GEOLOGY AND MINERAL DEPOSITS

Reference (Deposit): RECEIVES APPROVAL OF THE PLAN OF OPERATIONS" 1/23/97. 1P.

Reference (Deposit): SANTA FE PACIFIC GOLD CORPORATION. FAX. "TWIN CREEKS

Reference (Deposit): SANTA FE PACIFIC GOLD CORPORATION, ANNUAL REPORT, 62P.

Reference (Deposit): THE MINING RECORD, VOL106, #N9, MARCH 1, 1995, PP10, 11.

Reference (Deposit): THE MINING RECORD, VOL104, #29, JULY 21, 1993, P1.

Reference (Deposit): ROCKY MOUNTAIN PAY DIRT, JULY 1993, #166, PP5A, 6A.

Reference (Deposit): NORTHEASTERN NEVADA. OCT. 9-12, 1988, 291 PP.

Reference (Deposit): TRIP GUIDEBOOK NO. 6, PRECIOUS METAL DEPOSITS OF

Reference (Deposit): GOLD EXPLORATION: TECHNIQUES, CONCEPTS AND PROBLEMS, FIELD

Reference (Deposit): SCHAFER, R. W., AND R. H. BUFFA. INTERNATIONAL MEETING ON

Reference (Deposit): PP. 805-819.

Reference (Deposit): GEOL. SOC. OF NEVADA SYMP., SPARKS, NV, APR. 1990, V. 2,

Reference (Deposit): CREEK SEDIMENT-HOSTED GOLD DEPOSIT, HUMBOLDT COUNTY, NEVADA.

Reference (Deposit): ALTERATION, AND NEW EXPLORATION TECHNIQUES AT THE CHIMNEY

Reference (Deposit): OSTERBERG, M. W., AND J. M. GUILBERT. GEOLOGY, WALL-ROCK

Reference (Deposit): MIN. J., V. 191, NO. 6, JUNE 1990, PP. 36-39.

Reference (Deposit): CARTER, R. A. A RECORD YEAR FOR NEVADA GOLD. ENG. AND

Reference (Deposit): 117-119.

Reference (Deposit): OCCURRENCE MODEL. U.S. GEOL. SURV. BULL. 1646, 1985, PP.

Reference (Deposit): VOLCANIC-HOSTED DISSEMINATED GOLD DEPOSITS-SEARCH FOR AN

Reference (Deposit): BERGER, B. R. GEOLOGIC CHARACTERISTICS OF SEDIMENT- AND

Reference (Deposit): GEOLOGY, V. 2. SOC. ECON. GEOL., 1985, PP. 169-202.

Reference (Deposit): THE WESTERN UNITED STATES. PAPER IN REVIEWS IN ECONOMIC

Reference (Deposit): OF SEDIMENT-HOSTED. DISSEMINATED PRECIOUS-METAL DEPOSITS IN

Reference (Reserve-Resource): 9.

Reference (Deposit): BAGBY, W. C., AND B. R. BERGER. GEOLOGIC CHARACTERISTICS

Reference (Reserve-Resource): SANTA FE PACIFIC GOLD CORPORATION, 1996 FORM 10-K, PP. 5, 7,

Reference (Reserve-Resource): SANTA FE PACIFIC GOLD CORPORATION, FORM 10-K, PP. 4-5, 7-10.

Reference (Reserve-Resource): 1995/69, NEVADA MINES DIRECTORY, P25.

Reference (Reserve-Resource): COMPANIES, P277.

Reference (Deposit): THE NORTHERN MINER, JUNE 3, 1996, PP. B1-B16, B4.

Reference (Deposit): HUMBOLDT COUNTY, NEVADA. SEPT. 1987, 24 PP.

Reference (Deposit): FACILITIES PERMITTING REPORT, CHIMNEY CREEK GOLD MINE,

Reference (Deposit): ENVIRONMENTAL SOLUTIONS, INC. FINAL DESIGN: HEAP LEACH

Reference (Deposit): MINING ENGINEERING, SEPT., 96, PP. 39-43.

Reference (Deposit): SANTA FE PACIFIC GOLD CORP., NEWS RELEASE, 11/14/96, P1.

Reference (Deposit): NEWS RELEASE, SPGC, NOV. 14, 1996.

Reference (Deposit): THE MINING RECORD, VOL., 108, #5, JAN., 29, 1997, P3.

Reference (Deposit): THE MINING RECORD, VOL., 107, #49, DEC., 4, 1996, PP. 6, 7.

Reference (Production): SCHEDULE". PP. 1, 6.

Reference (Deposit): PAY DIRT, #691, JAN. 1997, PP. 12, 14.

Reference (Production): PACIFIC GOLD; TWIN CREEKS EXPANSION PROJECT AHEAD OF

Reference (Production): THE MINING RECORD, VOL 107, #34, AUGUST 21, 1996. "SANTA FE

Reference (Reserve-Resource): RANDOL MINING DIRECTORY, 1996/97, U.S. MINES & MINING

Reference (Reserve-Resource): NOVEMBER, 1987 E & MJ MAGAZINE:

Reference (Ownership): THE NEVADA MINER, VOL. 2N, NO. 7, NOVEMBER 1993.

Reference (Deposit): THE MINING RECORD, VOL 107, #34, AUG. 21, 1996, PP. 1, 6.

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Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.