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Sixteen-To-One

Plant in Esmeralda county in Nevada, United States with commodities Copper, Gold, Silver
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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. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10149524
MAS/MILS ID 0320090134
Record type Site
Current site name Sixteen-To-One
Alternate or previous names Silver Peak, Mary Drinkwater Mine, Silver Jack Decline

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -117.78593, 37.71574 (WGS84)
Elevation 2130
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mohawk Mine(quadrangle 1:24,000 scale)

Goldfield(quadrangle 1:100,000 scale)

Goldfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ralston-Stone Cabin 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 Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002 S 038 E 32 S2 Nevada

Commodities

Commodity Importance
Copper Tertiary
Gold Primary
Silver Primary

Materials information

Materials Type of material
Acanthite Unknown
Argentite Unknown
Barite Unknown
Calcite Unknown
Chalcopyrite Unknown
Galena Unknown
Gold Unknown
Marcasite Unknown
Proustite Unknown
Pyrargyrite Unknown
Pyrite Unknown
Quartz Unknown
Siderite Unknown
Silver Unknown
Sphalerite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) -117.78593, 37.71574
ListMap

Economic information

Ore body information

  • Strike N40E
    Dip 65E
    Thickness 6.7M
    Length 580M
    Depth to top 240M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Type of Wallrock Alter. #1 SILICIFICATION
    Type of Wallrock Alter. #2 INTERM ARGILLIC
    Strike And Dip N40E:65E
    Date of Last Modification 850823

Comments on the geologic information

  • PORTIONS OF THE QUARTZ VEIN ARE ORE:THE TUFF FLOWS AND TUFFACEOUS SEDIMENTS ARE THE PRIMARY ORE HOST:THE TUFF AND FLOW BRECCIAS ACT AS THE HOST TO THE VEIN IN THE UPPER LEVELS.

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1935
Mining method Open Pit
Year of first production 1982
Plant type Leach
Plant subcategory Precipitation

Mining district

District name Red Mountain District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner-Operator
    Owner Zephyr Resources
    ID 2601638
    Interest 100
    Home office Nevada
    Year 1990

Production statistics

  • Year 1982
    Description 140 Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 140000g
  • Year 1982
    Description 20-30 Kg Dore Bullion Buttons 19499 Kg Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 19499000g
  • Year 1983
    Description 220 Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 220000g
  • Year 1983
    Description 28060 Kg Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 28060000g
  • Year 1984
    Description Gold Bullion 190 Kg Gold/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 190000g
  • Year 1984
    Description Silver Bullion 26050 Kg Silver/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 26050000g
  • Year 1984
    Description Ore Production 182250 Mt Ore/Year

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 998000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.03 g/mt Gold Major 1982
    Silver Ag 287.3 g/mt Silver Major 1982
  • Type In-situ
    Estimate year 1984
    Measured 978000mt ore
    Demonstrated 978000mt ore
    Total resources 978000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.96 g/mt Gold Major 1984
    Silver Ag 185.0999 g/mt Silver Major 1984
  • Type In-situ
    Estimate year 1984
    Measured 788000mt ore
    Demonstrated 788000mt ore
    Total resources 788000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.99 g/mt Gold Major 1984
    Silver Ag 180.7 g/mt Silver Major 1984

Comments on the reserve resource information

  • MINEABLE RESERVES INCLUDE A 10% DILUTION OF 1 OZ/T AG, 0.01 OZ/T AU AND REPRESENTS RESERVES ABOVE THE 6650 FT ELEVATION
  • PROVEN & PROBABLE RESERVES AS OF JAN. 1, 1985 - FROM SUNSHINE MINING CO 1984 ANNUAL REPORT, P. 12
  • THE MINE SHUT DOWN IN JUNE 1986, AND MINING OPERATIONS HAVE NOT RECOMMENCED. THE NEW RESERVE FIGURE IS FROM RANDOL 1993/94 NOW OPERATED AS AN OPEN PIT RUN BY ZEPHYR, CCD/MERRILL CROWE. AKA: SILVER PEAK OPERATION AND MARY DRINKWATER. MINE SHUT DOWN SINCE 6-86.

Reference information

Bibliographic references

  • Reserve-Resource

    847. YOUNG, A. R. THE 16 TO 1 MINE, SUNSHINE MINING

  • Reserve-Resource

    COMPANY, SILVER PEAK, NEVADA. SECTION IN AN IN-DEPTH STUDY

  • Reserve-Resource

    OF 5 NEW SILVER AND GOLD MINES. 1983, 16 PP.; AVAILABLE

  • Reserve-Resource

    FROM NORTHWEST MIN. ASSOC., 636 PEYTON BLDG., SPOKANE,

  • Reserve-Resource

    WASHINGTON 99201.

  • Reserve-Resource

    700. SUNSHINE MINING CO. ANNUAL REPORT, 1983. 1984, P. 8.*

  • Reserve-Resource

    SUNSHINE MINING CO. 1984 ANNUAL REPORT, P. 12.

  • Deposit

    7. ALBERS, J. P., AND F. J. KLEINHAMPL. SPATIAL

  • Deposit

    RELATION OF MINERAL DEPOSITS TO TERTIARY VOLCANIC CENTERS

  • Deposit

    IN NEVADA. U.S. GEOL. SURV. PROF. PAPER 700-C, 1970,

  • Deposit

    PP. C1-C10.

  • Deposit

    8. ALBERS, J. P., AND J. H. STEWART. GEOLOGY AND

  • Deposit

    MINERAL DEPOSITS

  • Deposit

    OF ESMERALDA COUNTY, NEVADA. NV BUREAU OF MINES AND GEOL. BULL.

  • Deposit

    78, 1972, 80 PP.

  • Deposit

    124. EARNEST, D. F. GEOLOGY OF THE SIXTEEN-TO-ONE MINE,

  • Deposit

    ESMERALDA COUNTY, NEVADA. ABSTR. NORTHWEST MIN.

  • Deposit

    ASSOC., 89TH ANNU. CONV., SPOKANE, WASHINGTON ABSTR.

  • Deposit

    BOOKLET, DEC. 1-3, 1983, P. 10.

  • Deposit

    171. ENGINEERING AND MINING JOURNAL. SUNSHINE'S NEW

  • Deposit

    SIXTEEN-TO-ONE SILVER MINE: MASS PRODUCTION SYSTEMS

  • Deposit

    APPLIED TO A SMALL MINE AT A REMOTE NEVADA LOCATION.

  • Deposit

    V. 185, NO. 5, 1984, PP. 46-52.

  • Deposit

    224. GRACE, K. A. EXPLORATION AND DEVELOPMENT IN 1982.

  • Deposit

    WORLD MIN. (YEARBOOK), V. 36, NO. 8, 1983, PP. 60-61.

  • Deposit

    307. INTERMOUNTAIN PAYDIRT (BISBEE, AZ). SUNSHINE'S

  • Deposit

    NEW 16 TO 1 NEVADA SILVER MINE IS NEARING CAPACITY.

  • Deposit

    NO. 34, JULY 1982, PP. 1, 33-40.

  • Deposit

    339. KEITH, W. J. PRELIMINARY GEOLOGIC MAP OF THE RED

  • Deposit

    MOUNTAIN MINING DISTRICT, NEVADA. U.S. GEOL. SURV.

  • Deposit

    OPEN-FILE MAP, 1972, SCALE 1:12,000.

  • Deposit

    483. NEVADA MINING ASSOCIATION (RENO). SUNSHINE'S SILVER

  • Deposit

    PEAK MINE UNLIKE FAMED SILVER LODE IN IDAHO. NV MIN.

  • Deposit

    ASSOC. BULL., V. 5, NO. 2, 1981, PP. 4-5.

  • Deposit

    487. NEVADA MINING ASSOCIATION (RENO). SANTINI LAUDS

  • Deposit

    OPENING OF SILVER PEAK UNDERGROUND SILVER MINE. NV MIN.

  • Deposit

    ASSOC. BULL., V. 6, NO. 1, 1982, PP. 14-15.

  • Deposit

    489. NEVADA MINING ASSOCIATION (RENO). SUNSHINE

  • Deposit

    SIXTEEN-TO-ONE MINE OPENS IN SILVER PEAK; BUCKS TREND. NV

  • Deposit

    MIN. ASSOC. BULL., V. 6, NO. 3, 1982, PP. 6-7.

  • Deposit

    663. SMITH, J. F., JR., AND K. B. KETNER. GENERALIZED

  • Deposit

    GEOLOGIC MAP OF THE CARLIN, DIXIE FLATS, PINE VALLEY, AND

  • Deposit

    ROBINSON MOUNTAIN QUADRANGLES, ELKO AND EUREKA COUNTIES,

  • Deposit

    NEVADA. U.S. GEOL. SURV. MISC. FIELD STUDIES MAP

  • Deposit

    MF-481, 1972, SCALE 1:125,000.

  • Deposit

    694. STEWART, J. H., P. T. ROBINSON, J. P. ALBERS, AND D.

  • Deposit

    F. CROWDER. GEOLOGIC MAP OF THE PIPER PEAK QUADRANGLE,

  • Deposit

    NEVADA-CALIFORNIA. U.S. GEOL. SURV. GEOL. QUAD. MAP

  • Deposit

    GQ-1186, 1974, SCALE 1:62,500.

  • Deposit

    698. SUNSHINE MINING CO. ANNUAL REPORT, 1982. 1983,

  • Deposit

    P. 6.

  • Deposit

    699. SUNSHINE MINING CO. ANNUAL REPORT, FORM 10-K, FOR

  • Deposit

    YEAR ENDED DECEMBER 31, 1983. SECURITIES AND EXCHANGE

  • Deposit

    COMMISSION, 1984, PP. 10-12.

  • Deposit

    765. WALLACE (ID) MINER. PROFIT PREDICTED FOR 16-TO-1

  • Deposit

    MINE. SEPTEMBER 9, 1982, P. 5.

  • Deposit

    DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURING CALENDER

  • Deposit

    YEAR 1987- NEVADA DIVISION OF MINE INSPECTION, 1988

General comments

Subject category Comment text
Deposit MILL: ACTIVE,5.6 KM E OF MINE,AVG. 564 T/D (1983),CYANIDE LEACH TANK, CCD , ZN DUST PPT, SCHEDULED PROCESS RATE OF 635 T/D.PRODUCES DORE BULLION WHICH IS AIRLIFTED TO THE BIG CREEK REFINERY IN KELLOGG,IDAHO. THE 1983 METAL OUTPUT WAS FROM ORE AVERAGING 1.65 G/T GOLD AND 187 G/T SILVER. GENERAL LOCATION: ABOUT 100 KM SW OF TONOPAH GENERAL SIZE OF ORE BODY: SMALL. SUNSHINE STATES THAT THE POTENTIAL FOR ADDITIONAL RESERVES IS EXCELLENT, DRILLING ON THE WESTERN AND DOWN DIP EXTENSION HAS INTERSECTED MINERALIZATION. THE NEARBY NIVLOC MINE (UNDER SUNSHINES CONTROL) HAS UP TO 900000 T OF MINEABLE RESERVES. MINING METHOD: SUBLEVEL BLASTHOLE STOPING, 685 T/D ORE.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-MAR-95 Spear, James M. U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 01/04/1994
MSHA mine ID2601638
Mine name (MSHA)16:1
Current operatorSunshine Precious Metals Inc
Current controller (parent)Sunshine Mining & Refining Company
Mine typeUnderground (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

External references

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.