Pipeline

Site Name

Primary: Pipeline
Secondary: Cortez Open Pit
Secondary: Cortez Gold Operations
Secondary: Cortez Gold Mine
Secondary: South Pipeline

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Commodity

Primary: Gold
Tertiary: Silver
Tertiary: Mercury

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Location

State: Nevada
County: Lander
District: Cortez 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: Fee Ownership
Type: Patented
Type: Located Claim

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Workings

Type: Surface

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Ownership

Owner Name: Cortez Gold Mines Joint Ventrue
Home Office: Nevada
Info Year: 1996

Owner Name: Kennecott Minerals Co. (Rtz-Cra) (With A 7.5% Npi)
Percent: 40.00
Home Office: Utah
Info Year: 1996
Years: 1991 -

Owner Name: Placer Dome U. S. Inc.
Percent: 60.00
Home Office: California
Info Year: 1996

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Production

Year: 1996
Description: Ore Treated 623000 Mt/Yr
Year: 1996
Description: Gold Production (Inc Pipline/So. Pip) 160782 T Oz/Yr Gold
Year: 1995
Description: Ore Treated 646000 Mt/Yr
Year: 1995
Description: Gold Production 111000 Tr Oz/Yr
Year: 1994
Description: Gold Production 41765 Oz Gold
Year: 1993
Description: Gold 66851 Oz Gold
Year: 1993
Description: Millfeed (1993) 647000 St/Yr
Year: 1991
Description: Gold 23097 Oz Gold
Year: 1992
Description: Gold 45553 Oz Gold

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Deposit

Record Type: Site
Operation Category: Plant
Plant Type: Leach
Operation Type: Surface
Mining Method: Combined Methods
Milling Method: Carbon-In-Leach-Electrowin
Year First Production: 1968
Discovery Year: 1966
Years of Production:
Organization:
Significant: Y
Deposit Size: M

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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 (Production): MILL ORE OPERATION. 1988 AU PROD.= 50,000 OZ. 1989 AU PROD.= 40,000 OZ. FROM MILLING 687,140 MT ORE. 1989 RESERVE = 506,000 OZ CONT.AU. AS OF 12/31/95 ALL GOLD PRODUCTION FOR "CORTEZ" GOLD MINING PROPERTIES WILL BE INCLUDED IN THIS FILE:

Comment (Production): 6-97: PRODUCTION IS EXPECTED TO BE 310,000 OZ AU/YR BASED ON A CAPACITY OF 7200 TONNES/DAY.

Comment (Reserve-Resource): THIS IS THE MAIN FILE FOR THE CORTEZ MINING COMPLEX: IT CONTAINS RESERVES/RESOURCES AND ADIT DATA FOR THE "CORTEZ MINES", CONSISTING OF FIVE OPEN PITS: CORTEZ (NO MAS SEQ#); GOLD ACRES & LITTLE GOLD ACRES (0320150008); HORSE CANYON (0320110228), THE CORTEZ MILL (0320159011). THE CRESENT PIT DOES NOT HAVE A SEPARATE MAS SEQ#. THESE THREE PIT ARE DEPLETED. THE ONLY ONE PIT IS IN PRODUCTION AT THIS TIME (AUG-97) PIPELINE (0320150003); SO. PIPELINE (0320150610) START-UP IN 1998: THEIR IS ALSO A PIPELINE MILL (NO MAS SEQ#), IT WILL EVENTUALLY PROCESS ALL THE ORE. RESERVES/RESOURCES ARE TOTAL DEMON. (PROV+PROB+MEAS+IDIN) ORE AS OF 12/31/96:

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References

Reference (Deposit): GOLD DEPOSTIS, MINING ENGINEERING, V31,#9, SEPT. 1979,

Reference (Deposit): WARGO, JOSEPH G. THE NEXT EXPLORATION STATE FOR CARLIN-TYPE

Reference (Deposit): RTZ-CRA 1996 ANNUAL REPORT ON FORM 20-F.

Reference (Deposit): THE NORTHERN MINER, V83 #14, 6-2-97, P. B1, B6.

Reference (Deposit): FORM 20-F.

Reference (Deposit): PLACER DOME, INC, 1995 10-K REPORT, P 19.

Reference (Deposit): THE RTZ CORPORATION PLC CRA LIMITED, 1995 ANNUAL REPORT ON

Reference (Deposit): WORLD MINING, V5, #5, 1969, PP. 28-32.

Reference (Deposit): 12/1 - 12/11.

Reference (Deposit): NEVADA, 1969, NEVADA MACKAY SCHOOL OF MINES, 1969, PP.

Reference (Deposit): BASIN AND RANGE GEOLOGY GUIDEBOOK, FIELD CONFERENCE, RENO

Reference (Deposit): ECONOMIC GEOLOGY, V64, 1969, PP. 526-537.

Reference (Deposit): USGS PROF PAPER 610, 1968, P179.

Reference (Deposit): PLACER DOME, 1994 ANNUAL REPORT

Reference (Deposit): THE RTZ CORP, PLC, 1994 ANNUAL REPORT AND FORM 20K.

Reference (Deposit): USGS (PP?) 408, 1910, P103.

Reference (Reserve-Resource): PP. 17, 29.

Reference (Deposit): USGS BULLETIN 1312-P, 1971, P5, PLATE 2.

Reference (Production): KEIZER, MINING ENGINEERING, V145, #12, DEC. 93, PP. 1459-

Reference (Reserve-Resource): RTZ-CRA FACT BOOK, P21 & RTZ-CRA ANNUAL REPORT; FORM 20-F,

Reference (Reserve-Resource): PLACER DOME INC., 1996 10-K REPORT, PP. 14-16.

Reference (Reserve-Resource): PLACER DOME INC., 1995 10-K REPORT, P 12.

Reference (Reserve-Resource): AMERICAN MINES HANDBOOK, 1996, P 195.

Reference (Production): 1462.

Reference (Reserve-Resource): NEVADA BUREAU OF MINES, BULL #88, 1977, P78.

Reference (Deposit): COMPANIES, P237, "CORTEZ MINE".

Reference (Deposit): RANDO MINING DIRECTORY, 1996/97, U.S. MINES & MINING

Reference (Deposit): PLACER DOME, PRESS RELEASE'S, 1994-1995, VARIOUS.

Reference (Deposit): AMERICAN MINES HANDBOOK 1996, PP 193-196, "CORTEZ MINE".

Reference (Deposit): INC.", P 23, "CORTEZ MINE".

Reference (Deposit): 1995/96, NEVADA MINES DIRECORTY, P 16, "PLACER DOME U.S.

Reference (Production): P 33.

Reference (Production): DRY GRINDING EZPERIENCE AT THE CORTEZ GOLD MINE", GARRY

Reference (Production): 1995-96 PROD; RTZ-CRA CORP. PLC CRA LTD, FACT BOOK 1997,

Reference (Deposit): PP. 1321-1323.

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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.