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Bristol Silver Mine

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

Geologic information

Identification information

Deposit ID 10104125
MRDS ID M242423
Record type Site
Current site name Bristol Silver Mine
Alternate or previous names Snyder Shaft, Gypsy Shaft, May Day Shaft
Related records 10222278, 10310377

Geographic coordinates

Geographic coordinates: -114.61695, 38.08107 (WGS84)
Elevation 2210

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bristol Range SE(quadrangle 1:24,000 scale)

Wilson Creek Range(quadrangle 1:100,000 scale)

Lund(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Dry Lake Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003N 066E 31 PROJECTED FROM THE EAST Nevada

Comments on the location information

  • UNSURVEYED AREA. UTM IS TO SYNDER SHAFT, WHOSE WORKINGS ARE CONNECTED WITH THE MAY DAY SHAFT 400 FT TO THE NORTH, AND THE GYPSY SHAFT 100 FT TO THE SOUTHWEST ; INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Silver Primary
Copper Primary
Lead Primary
Zinc Critical Primary
Gold Secondary
Manganese Critical Secondary

Comments on the commodity information

  • PYRITE (BELOW 1700 FT).

Materials information

Materials Type of material
Chrysocolla Ore
Cuprite Ore
Galena Ore
Lead Ore
Malachite Ore
Melaconite Ore
Plumbojarosite Ore
Sphalerite Ore
Calcite Gangue
Hematite Gangue
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Associated
    Rock type Plutonic Rock
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Highland Peak;Pioche Shale;Chisholm Shale;Lyndon Limestone
    Rock description Highland Peak;Pioche Shale;Chisholm Shale;Lyndon Limestone

Nearby scientific data

(1) -114.61695, 38.08107
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Thrust Faults
Type of structure Local
Structure description Faults; Barren Post-Mineral Faults

Ore body information

  • General form IRREGULAR TO TABULAR
    Strike N 6-10 W (GYPSY); N60E (MAY DAY)
    Dip 80E (GYPSY); 43S (MAY DAY)
    Thickness 18.29M
    Length 609.6M
  • General form IRREGULAR TO TABULAR
    Strike N 6-10 W (GYPSY); N60E (MAY DAY)
    Dip 80E (GYPSY); 43S (MAY DAY)

Controls for ore emplacement

  • Fracture Intersections And Favorable Lithologies; May Day Fault (N65e, 45se)

Comments on the geologic information

  • SHALE (BELOW 1700 FT), DOLOMITIC LIMESTONE, BOTH MASSIVE AND THIN-BEDDED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1965
Year of first production 1878

Mining district

District name Bristol And Jackrabbit Districts

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Bristol Silver Mines Co.(1920'S)

Comments on the production information

  • 800 TONS/MONTH PRODUCED, JULY, 1926

Workings at the site

  • Type of workings Unknown
    Length 3218.6M
    Overall depth 542.54M

Comments on the workings information

  • MAY DAY SHAFT, TUNNEL, AND CROSS CUT; MAIN SNYDER SHAFT TO 1780 FT IN 1940'S, ON 70S INCLINE; GYPSY SHAFT (VERTICAL); MAJOR STOPES ARE THE DAVE FOX STOPE, BINGHAM CANYON STOPE, BONANZA STOPE, CAVE STOPE, PERRY STP`E. ;;PUD STP`E. KPJMSPM STP`E. SJROMLAGE STP`E AMD ORPM STP`E/ 2-MILE AERIAL TRAMWAY FROM WORKINGS TO R.R. TERMINUS AT JACKRABBIT.

Comments on development

  • OWNED AND OPERATED BY DAY-BRISTOL CONSOLIDATED MINING CO. IN EARLY 1900'S, WHO BUILT AERIAL TRAM IN 1914. BRISTOL SILVER MINES CO WAS ORGANIZED IN 1919 AND THEY PURCHASED THE JACKRABBIT-PIOCHE NARROW GAUGE RAILROAD. PRIOR TO 1926 BRISTOL OPERATED WITH GASOLINE ENGINES, THEN DIESEL ENGINES CONNECTED TO GENERATORS UNTIL 1937 WHEN ELECTRICAL POWER WAS OBTAINED FROM BOULDER PIOCHE POWERLINE. PRODUCTION AT THAT TIME WAS 3000 TONS/MONTH. BRISTOL SILVER MINING CO OWNED MOST OF THE PROPERTY IN THE DISTRICT FOR SOME TIME, BUT THIS RECORD TREATS ONLY THE MAIN SNYDER-GYPST-MAYDAY WORKINGS.

Reference information

Bibliographic references

  • Deposit

    NBMG MINING DISTRICT FILE 171, ITEMS 3 (UNPUB REPORT BY COLEMAN, GEMMILL, BUEHLER) (1940'S); ITEM 6 (MAP OF WORKINGS), ITEMS 12,13,20,21,22,23,24,25,26,27

  • Deposit

    COLEMAN, H.S., 1943, BRISTOL SILVER MINES CO., MINING CONGRESS JOURNAL, JULY, 1943; NBMG MINING DISTRICT FILE 171, ITEM 11

  • Deposit

    WEED, W.H., 1922, THE MINES HANDBOOK, VOL. XV, P. 1152-1153

  • Deposit

    MINERAL RESOURCES OF THE U.S., 1908, PT. 1, P. 493; 1909, PT. 1, P. 416-417

General comments

Subject category Comment text
Deposit Discovery Year: 1960'S?
Deposit SEVERAL BADLY BRECIATED ZONES NEAR FAULTS CARRY GOOD COPPER AND LEAD ORE WITH SILVER. 4 MAIN VEINS ACCOUNT FOR THE BULK OF PRODUCTION: MAY DAY, TEMPEST, GYPSY-NATIONAL, AND THE LEAD-ZINC. THESE ORE BODIES OCCUR ALONG FRACTURED ZONES, IN BRECCIATED AREAS AND IN INTERSECTING FISURES. THE MAIN FISSURE SYSTEM (MAY DAY) RUNS E-W. THE TEMPEST ALSO RUNS ABOUT N80E, BUT THE TEMPEST DIPS 70, WHILE THE MAY DAY DIPS 45. THE GYPSY-NATIONAL SYSTEM STRIKES NE AND DIPS 70-85E, AND THE LEAD-ZINC VEIN STRIKES S NW AND DIPS 90. THE 2 LATTER INTERSECT THE TEMPEST AND MAY DAY FISSURE, AND IN THESE INTERSECTIONS ARE FOUND LARGE BRECCIATED ZONES IN WHICH OXIDIZED ORE OCCURS. SULFIDE ORE IS RARE, BUT SOMETIMES OCCURS AS "NODULES" WITH GALENA CORES ENCASED IN CERUSSITE, THEN CARBONATE AND THEN A FILM OF COPPER OXIDE. BEDDING CONTACTS AND FLAT BEDDING THRUSTS OFTEN LOCALIZE ORE DEPOSITION. OREBODIES ARE VERY IRREGULAR IN SIZE AND SHAPE. ORE IS VERY SOFT. SOME OF THE LARGER OREBODIES DEVELOPED AT
Deposit INTERSECTIONS OF THE MAY DAY AND TEMPEST FISSURES. STOPING WAS PRACTICALLY CONTIGUOUS FROM THE MAY DAY COLLAR TO THE 1000 LEVEL OF THE SNYDER SHAFT.
Deposit IN 1942 THE PROPERTY CONSISTED OF 638 ACRES OF PATENTED LAND AND 1222 ACRES OF UNPATENTED LAND. THE BRISTOL SILVER MINES CO OWNED MOST OF THE MAIN WORKINGS OF THE DISTRICT BUT ONLY THE CENTRAL SNYDER, GYPSY &MAY DAY WORKINGS ARE HERE IN DESCRIBED. THE OTHERS ARE TREATED AS SEPARATE RECORDS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1985 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.