Grant Mine Easter Dome Project

The Grant Mine Easter Dome Project is a gold mine located in Alaska at an elevation of 774 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: Grant Mine Easter Dome Project
Secondary: Ester Dome Project
Secondary: Banjo
Secondary: D and 2
Secondary: Grant
Secondary: Irishman
Secondary: Roosevelt
Secondary: White Rock
Secondary: St. Patrick

Commodity

Primary: Gold
Secondary: Silver

Location

State: Alaska
District: Fairbanks District

Land Status

Land ownership: State
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: Located Claim

Workings

Type: Underground

Ownership

Owner Name: Silverado Mines Ltd.
Percent: 50.00
Home Office: Canada
Info Year: 1993

Owner Name: Silverado Mines Ltd.
Percent: 100.0
Home Office: Canada
Info Year: 1996
Years: 1993 -

Owner Name: Tricon Mining, Inc.
Company ID: 5001314
Home Office: Canada
Info Year: 1989

Owner Name: Roger Burgraff
Company ID: 5001314
Home Office: Alaska
Info Year: 1980

Owner Name: American Copper And Nickel Co.
Company ID: 5001314
Percent: 50.00
Info Year: 1993

Production

Year: 1981
Description: Grade 1 Oz/S.T. 8500 Short Tons Ore
Year: 1989
Description: Silver Production 706 Troy Ounces Silver
Year: 1989
Description: Gold Production 1307 Troy Ounces Gold
Year: 1988
Description: 3400 Oz Ag See Rec 4 For Pro & Units
Year: 1988
Description: 7815 Oz Au, Average Au Grade 0.75 Oz/St 82000 St + 14000 St (Contract)
Year: 1987
Description: 907.0 Oz Au - $118,000 Profit For 1987 6555 Short Tons Ore

Deposit

Record Type: Site
Operation Category: Plant
Plant Type: Leach
Plant Subtype: Hydromet
Operation Type: Surface-Underground
Mining Method: Combined Methods
Milling Method: Leach-Precipitation
Year First Production: 1912
Discovery Year: 1912
Years of Production:
Organization:
Significant: Y
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Arsenopyrite
Unknown: Galena
Unknown: Gold
Unknown: Pyrite
Unknown: Quartz
Unknown: Stibnite
Unknown: Tetrahedrite

Comments

Comment (Production): MINE & MILL OPENED IN OCT. 1985. AUREX PULLED OUT OF VENTURE IN DEC. 1985 AND THE MINE CLOSED. MINE REOPENED IN DEC. 1987 AFTER NEW DISCOVERIES. MINE SUSPENDED OPERATIONS IN FEB. 1989. TO DATE (2/92) MINE HAS NOT REOPENED. PRODUCTION 1981- 8500 TONS @ 1 OZ/TON. BAGGS-USBM. 81 NWMA 500-600 TONS ORE MILLED PRIOR TO 1931, YIELDED $15-20 PER TON (B 849 P. 150). RANDOL MINING DIRECTORY 1996-97: ESTIMATED PRODUCTION IS 25000 OZ AU/Y. PRODUCTION FROM THE 200-FOOT LEVEL.

Comment (Ownership): OPERATOR ADDRESS: (PRIOR TO 1993) TRI-CON MINING COMPANY, INC. P.O. BOX 83730 FAIRBANKS, ALASKA 99708 TELE: (907) 479-4686 OWNER-OPERATOR ADDRESS (AFTER 1993): SILVERADO MINES (U.S), INC. P.O. BOX 2357 FAIRBANKS, ALASKA 99707 TELE: (907) 479-4686 IN NOV. 1993, SILVERADO GAINED FULL OWNERSHIP WHEN AMERICAN COPPER AND NICKEL DECIDED TO DISSOLVE THE JOINT VENTURE AND QUITCLAIMED ITS INTEREST TO SILVERADO. SILVERADO IS ALSO THE OPERATOR.

Comment (Reserve-Resource): MOST RECENT PRODUCTION WAS FROM OCT. TO DEC.,1985 AND FROM LATE 1987 T0 FEB.1989. DEC.87 PROD.WAS 907 OZ.AU/JAN.89 PROD.WAS 738 OZ.AU. TRI-CON MINING WAS THE OPERATING CO. PEFR RECIEVED DEC.1990.WILL BE INCLUDED IN 1992 AU AVAIL.STUDY. PROPOSED MILLING IS FOR JIG/TABLES FOLLOWED BY CIP VAT LEACH. ALSO KNOW AS ESTER DOME PROJECT. M1C1 = SURFACE RESERVES; M2C1 = SURFACE TO 60.97 M UNDERGROUND RESERVES; M3C1 = 60.97 M TO 304.88 M UNDERGROUND RESERVES; M9C4 = TOTAL INDICATED RESERVES FROM M1 THROUGH M3; M9C5 = TOTAL INFERRED RESERVES.

Comment (Exploration): IN 1984, SILVERADO (55%), AUREX (40%), & TRI-CON SIGNED JOINT VENTURE FOR GRANT MINE ONLY. AUREX & TRI-CON CONTRIBUTED $5 MILLION FOR EXPLORATION, DEVEL., & MILL. BY 1985, 11,585 METERS OF DRILLING WAS COMPLETED.

Comment (Workings): WATER IN TAILINGS POND IS RECYCLED TO MILL. 20 GPM MAKE-UP WATER IS ADDED FOR EVAPORATIVE LOSSES.

Comment (Environmental Factors): A COMPACTED CLAY/LOESS LINER UNDERLIES THE TAILINGS POND.

Comment (Economic Factors): NOV. 1995, SILVERADO REPORTED THAT IT HAD ENTERED THE FINAL STAGE OF DRILLING ON THE PROPERTY BEFORE PLACING IT INTO PRODUCTION. SILVERADO PLANS TO CARRY OUT INFILL DRILLING FOR 30 REVERSE CIRCULATION HOLES IN THE SOUTH CENTRAL PORTION OF THE PROPERTY. SILVERADO HAS DRILLED 15 HOLES IN THE AREA. THE COMPANY PLANS TO SKIP THE FEASIBILITY STAGE AND PROCEED DIRECTLY TO PRODUCTION FROM AN 800 BY 300 FOOT AREA @ ST PAUL. THE SURFACE PLAN IS CATEGORIZED UNDER DEVEL. SCHEDUAL 1. THE CONCENTRATOR PLAN IS CATEGORIZED UNDER DEVEL. SCHEDUAL 1. THE UNDERGROUND PLAN IS CATEGORIZED UNDER DEVEL. SCHEDUAL 2. EQUIPMENT INCLUDES STEEL HEADFRAME, ELECTRIC HOIST, 25-TON GRAVITY MILL AND DIESEL-ELECTRIC GENERATOR. MILL BEING HOUSED FOR WINTER OPERATION. ALL WEATHER WATER SUPPLY FROM SHAFT SUMP. 1988 PAYROLL CONTRIBUTED $1,015,000 TO FAIRBANKS ECONOMY. AFOC-SMS (9-80).

Comment (Deposit): LAND USE IN AREA IS TECHNICALLY MULTIPLE, BUT A FIGHT OVER ZONING CONTINUES OVER A RESIDENTIAL OR MINING ZONING CLASS.

References

Reference (Deposit): EAKINS, G.R., ET AL. MINERAL DEVELOPMENT (GRANT MINE'S

Reference (Deposit): AMR 81-82 pp. 16, 21, 22, 31

Reference (Deposit): N MINER 820909

Reference (Deposit): SR31 p. 11

Reference (Deposit): ARMSTRONG, E.J. DESCRIPTION OF THE GRANT MINE LEACH

Reference (Deposit): FACILITY. PRES. AT SHORT COURSE ON HEAP LEACHING IN

Reference (Deposit): ALASKA. MARCH 22-23, 1988, 5 PP.; AVAIL. FROM AK DEP.

Reference (Deposit): COMMERCE & ECON. DEVEL., FAIRBANKS, AK.

Reference (Deposit): BURGRAFF, R. (GRANT MINE). PRIVATE COMMUNICATION, JULY 18,

Reference (Deposit): 1989; AVAIL. UPON REQUEST FROM D.A. HERZOG, BUMINES, AFOC.

Reference (Deposit): MURTON, W., & T.K. BUNDTZEN. GEOLOGICAL AND PRODUCTION

Reference (Deposit): ASPECTS OF THE GRANT GOLD MINE, FAIRBANKS DISTRICT,

Reference (Deposit): ALASKA. AK MINES & GEOL., V. 34, NO. 2, APRIL 1985, P. 8.

Reference (Deposit): EAKINS, G.R., ET AL. HARDROCK DRILLING. SEC. IN ALASKA'S

Reference (Deposit): SPEC. REP. 38, 1985, PP. 31-32.

Reference (Deposit): BUNDTZEN, T.K., ET AL. MINERAL PRODUCTION IN 1987 METALS

Reference (Deposit): (EASTERN INTERIOR REGION). SEC. IN ALASKA'S MINERAL

Reference (Deposit): INDUSTRY 1987. AK DIV. GEOL. & GEOPHYS. SURV. SPEC. REP.

Reference (Deposit): 41, 1988, PP. 30-31.

Reference (Deposit): GREEN, C.B., ET AL. MINERAL PRODUCTION IN 1988 METALS

Reference (Deposit): INDUSTRY 1988. AK DIV. GEOL. & GEOPHYS. SURV. SPEC. REP.

Reference (Deposit): 43, 1989, PP. 37-38.

Reference (Deposit): SMITH, P.S. MINERAL INDUSTRY OF ALASKA. U.S. GEOL. SURV.

Reference (Deposit): BULL. 933-A, 1942, P. 23.

Reference (Deposit): ALASKA MINES & GEOLOGY. ESTER DOME GOLD MINE TO GET SECOND

Reference (Deposit): FAIRBANKS GOLD MINE. AUG. 2, 1985, P. E-5.

Reference (Deposit): ALASKA JOURNAL OF COMMERCE & PACIFIC RIM REPORTER

Reference (Deposit): (ANCHORAGE). GRANT MINE HAS FIND. V. 12, NO. 19, 1988.

Reference (Deposit): (ANCHORAGE). GRANT GOLD MINE RIDES A "SUCCESSFUL VEIN".

Reference (Deposit): V. 12, NO. 27, 1988, P. 41.

Reference (Deposit): SR33 pp. 12, 25

Reference (Deposit): W MNG NEWS 850301

Reference (Deposit): SR38 pp. 10, 16

Reference (Deposit): AK MINES & G V34N2 pp. 7-8

Reference (Deposit): EAKINS, G.R., ET AL. SELECTED MINERAL DEVELOPMENT PROJECTS

Reference (Deposit): (GRANT GOLD MINE, FAIRBANKS DISTRICT). CH. IN ALASKA'S

Reference (Deposit): MINERAL INDUSTRY 1984. AK DIV. GEOL. & GEOPHYS. SURV.

Reference (Deposit): SPEC. REP. 38, 1985, P. 16.

Reference (Deposit): BUNDTZEN, T.K., ET AL. MINERAL DEVELOPMENT IN 1985 (GRANT

Reference (Deposit): GOLD MINE, EASTERN INTERIOR REGION). SEC. IN ALASKA'S

Reference (Deposit): MINERAL INDUSTRY 1985. AK DIV. GEOL. & GEOPHYS. SURV.

Reference (Deposit): SPEC. REP. 39, 1986, PP. 13-14.

Reference (Deposit): BUNDTZEN, T.K., ET AL. 1981 MINERAL DEVELOPMENT AND

Reference (Deposit): PRODUCTION PROJECTS IN ALASKA (GRANT MINE AND ESTER DOME

Reference (Deposit): DEVELOPMENT, TRI-CON, INC. EASTCENTRAL REGION). SEC. IN

Reference (Deposit): REVIEW OF ALASKA'S RESOURCES. AK DIV. GEOL. & GEOPHYS.

Reference (Deposit): SURV., 1982, PP. 21-22.

Reference (Deposit): ALASKA INDUSTRY. MINING IS MATURING IN FAIRBANKS. DEC.

Reference (Deposit): LIFE. V. 34, NO. 2, 1985, PP. 9-10.

Reference (Reserve-Resource): W MNG NEWS 850301 p. 1

Reference (Deposit): B836a p. 19

Reference (Deposit): B849B p. 150

Reference (Deposit): B910A p. 25

Reference (Deposit): OF42 p. 19

Reference (Deposit): P625D p. 17

Reference (Deposit): MF410

Reference (Deposit): BUNDTZEN, T.K., & J.T. KLINE. GEOLOGIC MINE MAP, GRANT GOLD

Reference (Deposit): MINE, FAIRBANKS MINING DISTRICT, ALASKA. AK DIV. GEOL. &

Reference (Deposit): GEOPHYS. SURV. OFR 141, 1981, 2 PP.

Reference (Deposit): CONWELL, C.N. MINERAL PREPARATION GRANT GOLD MINE, ALASKA.

Reference (Deposit): AK DIV. GEOL. & GEOPHYS. SURV. GEOL. REP. 74, 1982, 16 PP.

Reference (Deposit): THE ANCHORAGE TIMES. SILVERADO GAINS FINANCING FOR

Reference (Deposit): 1980, PP. 20, 32.

Reference (Deposit): NORTH AMERICAN GOLD MINING INDUSTRY NEWS (WILSONVILLE, OR).

Reference (Deposit): SILVERADO AIMS AT GETTING GRANT INTO PRODUCTION. DEC. 7,

Reference (Deposit): 1984, P. 20.

Reference (Deposit): BUNDZTEN, T. K., ET AL. MINERAL PRODUCTION (EASTERN

Reference (Deposit): INTERIOR REGION). SEC. IN ALASKA'S MINERAL INDUSTRY 1983.

Reference (Deposit): AK DIV. GEOL. & GEOPHYS. SURV. SPEC. REP. 33, 1984, P. 25.

Reference (Ownership): ALASKA KARDEX 058-035

Reference (Ownership): ALASKA KARDEX 058-283

Reference (Reserve-Resource): RANDOL MINING DIRECTORY 1996/97, P.120.

Reference (Reserve-Resource): N MINER 820909 p. 6

Reference (Deposit): ESTER DOME, EASTERN INTERIOR REGION). SEC. IN ALASKA'S

Reference (Deposit): MINERAL INDUSTRY 1982. AK DIV. GEOL. & GEOPHYS. SURV.

Reference (Deposit): SPEC. REP. 31, 1983, P. 11.

Reference (Deposit): EAKINS, G.R., ET AL. PRODUCTION (EASTERN INTERIOR REGION).

Reference (Deposit): SEC. IN ALASKA'S MINERAL INDUSTRY 1984. AK DIV. GEOL. &

Reference (Deposit): GEOPHYS. SURV. SPEC. REP. 38, 1985, PP. 9-10.

Reference (Deposit): THE NORTHERN MINER (TORONTO). REPORT FROM VANCOUVER. MAY

Reference (Deposit): 24, 1984, P. 6.

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