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  3. Mineral Resource Data System (MRDS)

Ruby Hill

Plant in Eureka county in Nevada, United States with commodities Copper, Gold, Lead, Silver, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10222192
MRDS ID W002902
MAS/MILS ID 0320110227
Record type Site
Current site name Ruby Hill
Alternate or previous names Archimedes, West Archimedes
Related records 60001658

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -116.0587, 39.41433 (WGS84)
Elevation 2572
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Eureka(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Spring Valley Summit(quadrangle 1:24,000 scale)

Summit Mountain(quadrangle 1:100,000 scale)

Millett(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Diamond-Monitor Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

Bureau of Land Management NV BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Eureka

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 018 N 052 E 24 SE Nevada

Commodities

Commodity Importance
Copper Tertiary
Gold Primary
Lead Tertiary
Silver Primary
Zinc Critical Tertiary

Nearby scientific data

Ore Body (1) -116.0587, 39.41433
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1993
Mining method Open Pit
Plant type Leach
Plant subcategory Precipitation
Milling method Carbon-In-Leach-Electrowin

Mining district

District name Eureka District

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Other

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Homestake Mining Co.
    Interest 100
    Home office California
    Year 1996
    First year 1992
  • Type Owner
    Owner Ruby Hill Mining Co. (Sub Mueller Indusatries, Inc.)
    Home office Nevada
    Year 1996
    First year 1996
  • Type Unknown
    Owner Hecla Mining Co.

Reserves and resources

  • Type In-situ
    Estimate year 1994
    Total resources 18143695mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.743 g/mt Gold Major 1994
  • Type In-situ
    Estimate year 1995
    Demonstrated 12337712mt ore
    Total resources 12337712mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.7029 g/mt Gold Major 1995
  • Type In-situ
    Estimate year 1996
    Demonstrated 6909000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.39 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1997
    Demonstrated 6895000mt ore
    Total resources 6895000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.39 g/mt Gold Major 1997

Comments on the reserve resource information

  • PROVEN & PROBABLE RESERVES AT RUBY HILL TOTAL 7.6 MILLION TONS ORE GRADING .O99 OZ GOLD/TON.
  • PROVEN + PROBABLE ORE; 12/31/96: DEVELOPMENT STARTED IN 3/97 PRODUCTION EXPECTED IN LATE 1997:

Reference information

Bibliographic references

  • Reserve-Resource

    E&MJ, EXPLORATION ROUNDUP, DEC. 1994, P.WW-7.

  • Reserve-Resource

    HOMESTAKE MINING COMPANY, 1994 ANNUAL REPORT, P22.

  • Reserve-Resource

    HOMESTAKE MINING COMPANY, 1995 FORM 10-K, REPORT, P14.

  • Reserve-Resource

    HOMESTAKE MINING COMPANY, 1995 ANNUAL REPORT, P19.

  • Reserve-Resource

    HOMESTAKE MINING COMPANY, 1996 FORM 10-K REPORT, P11.

  • Reserve-Resource

    HOMESTAKE MINING COMPANY, 1996 ANNUAL REPORT, PP. 16, 18-19.

  • Deposit

    HOMESTAKE MINING COMPANY, 1995 FORM 10K.

  • Deposit

    RANDOL, MINES DIRECTORY, 1994/95, U.S. MINES & MINING

  • Deposit

    COMPANIES, P347.

  • Deposit

    RANDOL, MINES DIRECTORY, 1996/1997, U.S. MINES & MINING

  • Deposit

    COMPANIES, PP. 269, 270.

  • Deposit

    AMERICAN MINES HANDBOOK, 1996, P129.

  • Deposit

    1995/96, NEVADA MINES DIRECTORY, PP. 11, 12.

  • Deposit

    AMERICAN METALS MARKET, VOL 104, #20, 2/9/96, P1.

  • Deposit

    THE MINING RECORD, FEB, 21, 96, VOL 107, #8, P?.

  • Deposit

    THE MINING RECORD, AUG, 21, 96, VOL 107 #34, P14.

  • Deposit

    THE MINING RECORD, SEPT, 4 1996, P7.

  • Deposit

    THE MINING RECORD, VOL., 107, #49, DEC., 4, 1996, P10.

  • Deposit

    THE MINING RECORD, VOL., 108, #9, FEB. 26, 1997, P12.

  • Deposit

    THE NORTHERN MINER, 6-2-97, P. B1, B4.

General comments

Subject category Comment text
Deposit USGS CRIB #WOO29O2 (W002902). HOMESTAKE MINING CO. HAS RECEIVED PERMITS TO DEVELOP THE WEST ARCHIMEDES ORE BODY AT ITS RUBY HILL PROPERTY IN CENTRAL NEVADA. CONSTRUCTION ON THE $65MIL. PROJECT HAS BEGUN. PRODUCTION IS SCHEDULED TO BEGIN IN MARCH, 1997, WITH THE MINING TO COMMENCE BY END OF 1997. 6-2-97: IN ITS 1ST FULL YR OF PRODUCTION, EARLY 1998, THE MINE WILL YIELD 3500 TONS PER DAY, AND HAS A PROJECTED LIFE OF 7 YRS.

Reporter information

Type Date Name Affiliation Comment
Reporter 22-SEP-97 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Homestake Mining Co. — acquired by Subsidiary of Barrick Gold (2001)
    Operator of the historic Homestake Mine in South Dakota; acquired by Barrick Gold in 2001.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.