Mc Coy Gold Deposit

The Mc Coy Gold Deposit is a gold mine located in Lander county, Nevada at an elevation of 5,299 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: Mc Coy Gold Deposit
Secondary: Echo Bay Mine
Secondary: NBMG Sample Site 669

Commodity

Primary: Gold
Secondary: Silver
Secondary: Copper

Location

State: Nevada
County: Lander
District: Mc Coy District

Land Status

Land ownership: BLM Administrative Area
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

Not available

Workings

Not available

Ownership

Owner Name: Echo Bay Mines
Years: 1988 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1981
Years of Production:
Organization:
Significant: N

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: STRATIFORM TO IRREGULAR

Structure

Type: L
Description: Faults Localized Stock Emplacement

Alterations

Alteration Type: L
Alteration Text: Strong Silication

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic

Analytical Data

Analytical Data: SAMPLE 669

Materials

Ore: Chalcopyrite
Ore: Chalcocite
Gangue: Quartz
Gangue: Zeolite
Gangue: Calcite
Gangue: Garnet
Gangue: Pyroxene
Gangue: Chlorite
Gangue: Epidote
Gangue: Pyrite

Comments

Comment (Development): SUMMA CORP DRILLED OVER 200 HOLES IN WHAT IS NOW MC COY DEPOSIT, IN 1969, HOUSTON OIL BOUGHT OUT SUMMA'S HOLDINGS IN 1977 AND DRILLED ANOTHER 120 HOLES IN THE DEPOSIT AND IN 1981 ANNOUNCED SUB-ECONOMIC RESERVES. PROPERTY WAS LEASED TO CONSOIDATED GOLDFIELDS PLC WHO IN 1984 DECIDED THAT THE PROPERTY WAS STILL SUBECONOMIC AND TURNED IT BACK TO TENNECO (SUCCESSOR OF HIMCO). TENNECO REAPPRAISED THE PROPERTY AND DECIDED TO PUT IT INTO PRODUCTION AS AN OPEN-PIT, HEAP LEACH OPERATION IN 1985. DEVELOPMENT BEGAN IN SEPT. 1985 WITH FIRST GOLD POURED APRIL, 1986. TENNECO EXPLORED ADJACENT GROUND AND MORE THAN DOUBLED MINEABLE RESERVE TO 615000 OZ AU. ECHO BAY ACQUIRED TENNECO'S PRECIOUS METALS PROPERTIES IN NOV. 1986.

Comment (Location): NE SIDE FISH CREEK MOUNTAINS ; INFO FROM LAND.ST :(1972)

Comment (Reserve-Resource): PRODUCTION IS NW ABOUT 85000 OZ AU YEAR BY CYANIDE HEAP-LEACH, CARBON RECOVERY SYSTEM

References

Reference (Deposit): BONHAM, H.F., 1988, IN NBMG, MI-1987.

Reference (Deposit): BONHAM, H.F., 1986, NBMG MAP 91.

Reference (Deposit): SMITH, P. AND BENTZ, J., NOV, 1981, NBMG FIELD EXAMINATION REPORT.

Reference (Reserve-Resource): BONHAM, 1988

Reference (Deposit): LANE, M.F., 1987, GEOLOGY AND MINERALIZATION OF THE MCCOY SKARN, LANDER CO., NEVADA; UNPUB. PAPER PRESENTED AT 93RD NW MINING ASSOC. CONVENTION, 1987.

Reference (Deposit): UNPUB. REPORT BY ECHO BAY MINES, ON FILE AT NBMG, MINING DISTRICT FILE 157.

Reference (Deposit): KUYPER, B.A., 1986, GEOLOGY OF THE MCCOY GOLD DEPOSIT, GSN. PRECIOUS METALS SYMPOSIUM PAPER.

Reference (Deposit): SCHRADER, F.C., 1934, USGS IC. #10.

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.