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Boston-Pioche Mine

Past Producer in Lincoln county in Nevada, United States with commodities Silver, Lead, Zinc, Copper, Arsenic, Antimony
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Production statistics
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10046398
MRDS ID M241549
Record type Site
Current site name Boston-Pioche Mine
Alternate or previous names NBMG Sample Site 1424 Area Silver Peak, Lafayette, Peavine, American Flag 1870's
Related records 10256624

Geographic coordinates

Geographic coordinates: -114.44584, 37.9219 (WGS84)

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pioche(quadrangle 1:24,000 scale)

Caliente(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Meadow Valley Wash(hydrologic unit)

Lower Colorado-Lake Mead(hydrologic accounting unit)

Lower Colorado-Lake Mead(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Nevada Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001N 067E 26 Nevada

Comments on the location information

  • NEAR YUBA MINE ; INFO FROM LAND.ST :1972

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Primary
Copper Secondary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Chrysocolla Ore
Malachite Ore
Iron Gangue
Jarosite Gangue
Pyrite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Silicification

Analytical data

Result SAMPLE 1424 CONTAINS 150 PPM MN, 2000 PPM AG, 2000 PPM AS, 100 PPM BA, 2000 PPM CU, GREATER THAN 20000 PPM PB, 5000 PPM SB, 300 PPM SN, 100 PPM V, 1000 PPM ZN.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Prospect Mountain Quartzite
    Rock description Prospect Mountain Quartzite
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -114.44584, 37.9219
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Shears

Ore body information

  • General form TABULAR
    Strike N40E
    Dip 90
    Thickness 4M

Controls for ore emplacement

  • Parallel Series Of Shear Zones Trending N40e, Vertical

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1875

Mining district

District name Pioche District

Land status

Ownership category Private

Production statistics

  • Year 1935
    Period 1928-1935
    Material ORE AGAUPB
    Accuracy Estimate
    Description Cp_Grade: ^25 Oz/T Ag, 0.4 Oz/T Au, 10-20% Pb.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 15wt-pct
    Ore Gold Gold 11g/mt
    Major Ore Silver Silver 706g/mt

Comments on the production information

  • EARLY FIGURES WERE FOR SILVER PEAK MINE FROM "PIOCHE RECORD" CLIPPINGS. 1928-1935 PRODUCTION WAS BY DAVID LLOYD.

Comments on the workings information

  • SINGLE CAVED ADIT; WITH OTHER WORKINGS IN THE AREA: PEAK SHAFT, CUT AND SHORT ADIT 200 FT NW OF AND 60 FT VERTICALLY BELOW PEAK COLLAR, AND A LOWER ADIT (PEAK TUNNEL); LAFAYETTE SHAFT; PEAVINE SHAFT (GREATER THAN 180 FT DEEP)

Comments on development

  • PRODUCTION FROM SILVER PEAK REPORTED IN 1873, WITH INCLINE DOWN 530 FT IN 1874, HIT GOOD ORE BODY AT 545 FT, MORE AT 550 FT. PRODUCTION CONTINUED IN 1874 WITH ONLY AG AND AU BEING RECOVERED. PB WAS LOST. DAVID LLOYD MINED THE PROPERTY FROM 1928 TO 1935 BETWEEN THE SURFACE AND THE 85-FT LEVEL. FROM 1959-1960, MR. DANIELSON AND R.T. SCHULTZ CLEANED OUT THE PEAK TUNNEL AND LAID TRACK, AIRLINE AND WATERLINE. ADDITIONAL EXCAVATING, CROSS-CUTTING AND DRIFTING WERE DONE AS NEEDED, AND SURVEYING, MAPPING, AS WELL. EARLY REPORTS TELL OF THE SINKING OF THE PEAVINE SHAFT IN 1872-1874 WITH ORE IN SIGHT.

Reference information

Bibliographic references

  • Deposit

    SMITH, P. AND BENTZ, J., 1983, FIELD EXAMINATION REPORT, AUG. 23, 1983.

  • Deposit

    USGS P.P. 171

  • Deposit

    USGS MAP MF-136.

  • Deposit

    NBMG DISTRICT FILE 175, ITEM 12 A AND MAP FILE 175; 1960, BY R.T. SCHULTZ.

  • Deposit

    ABBOTT, J.W., 1914, MIN & SCI PRESS, P. 484.

  • Deposit

    USBM, 1983, MILS DATA

  • Production

    SCHULTZ, 1960; COUCH AND CARPENTER, 1943, P. 87.

General comments

Subject category Comment text
Deposit Discovery Year: 1870'S
Deposit WORKINGS FOLLOW A QUARTZ-CEMENTED SHEAR ZONE; APPEARS TO BE ONE OF A SET OF PARALLEL SHEARS ON SE SLOPE OF TREASURE HILL. SERICITE FLAKES COAT FRACTURE SURFACES ALONG WITH MINOR JAROSITE. ORE OCCURS IN VERY FINE-GRAINED CRYSTALLINE FISSURE VEIN OF CALCITE/QUARTZ WITH DISSEMINATED PB-ZN SULFIDES. HEAVY; BLACK NODULES OF "COOKED" HYDROTHERMALLY ALTERED GOSSANY ORE STAINED WITH YELLOW OXIDES ABUNDANT ON DUMP. QUARTZ SHEAR MATERIAL CARRIES OXIDIZED PYRITE AND IS COATED WITH MALACHITE, CHRYSOCOLLA, SECONDARY SILICA AND GRANULAR SPHALERITE INTERSPERSED WITH PYRITE.
Deposit DEVELOPED SPRING, FREE-FLOWING; ACCESS ROAD DANGEROUS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1984 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology

Beyond USGS

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

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.