1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Gallic-Vulcan Group

Past Producer in Hinsdale county in Colorado, United States with commodities Silver, Gold, Lead, Copper, Zinc, Antimony, Tellurium
Map
XML
JSON
KML
B
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10014718
MRDS ID D011610
Record type Site
Current site name Gallic-Vulcan Group
Alternate or previous names Patented Claims: Gallic, MS 12227, Vulcan, MS 12227, Unpatented Claims: Vulcan Extension, Fairmount, Polaris, Wedge, Orion, Aurora, Cleon, Stella, Altamont, Rea, Gallic Placer, Gallic Mill Site, Sunshine, Explorer, Weatherhorn, Gold Superior, Silver Crest Extension, Sunshine Extension, Vulcan Mill Site, Vulcan Placer
Related records 10142762

Geographic coordinates

Geographic coordinates: -107.48035, 38.01361 (WGS84)
Elevation 3158
Relative position 8.9 MILES S 83 W FROM LAKE CITY

Site location context

Political divisions (FIPS codes)

Hinsdale(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Uncompahgre Peak(quadrangle 1:24,000 scale)

Montrose(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Colorado Hinsdale

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 044N;043N 006W;006W 35,36;01,12 Colorado

Comments on the location information

  • MINE LIES ON NE SLOPE OF SUNSHINE MOUNTAIN SE OF NORTH FORK HENSON CREEK AND EXTEND SE ONTO EAST SLOPE OF HILL AND 0.9 MILE NW OF CAPITOL CITY SITE. ELEV AND LAT-LONG GIVEN ARE FOR TUNNEL PORTAL IN C E2 E2 SE SEC. 35. ; INFO FROM LAND.ST :1977

Commodities

Commodity Importance
Silver Primary
Gold Primary
Lead Secondary
Copper Secondary
Zinc Critical Tertiary
Antimony Critical Tertiary
Tellurium Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Hessite Ore
Pyrite Ore
Silver Ore
Sphalerite Ore
Sylvanite Ore
Apatite Gangue
Barite Gangue
Calcite Gangue
Fluorite Gangue
Kaolinite Gangue
Quartz Gangue

Analytical data

Result AVERAGE ORE ASSAY: 0.5 TO 14 OZ/TON AG, 0.02 TO 1.22 OZ/TON AU, 7 % PB, 1 TO 55 % ZN. MILL CONCENTRATES CONTAINED ABOUT 10 OZ/TON AG, 0.21 OZ/TON AU, 50 % PB

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Rock unit name Eureka Member Of Sapinero Mesa Tuff;Biotite-Quartz Latite Of Burns Member Of Silverton Volcanics;Intrusive Rocks--Monzonite Porphyry Zr Fiss. Track 23.3
    Rock description Eureka Member Of Sapinero Mesa Tuff;Biotite-Quartz Latite Of Burns Member Of Silverton Volcanics;Intrusive Rocks--Monzonite Porphyry Zr Fiss. Track 23.3
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Monzonite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite

Nearby scientific data

(1) -107.48035, 38.01361
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field, San Juan Depression
Type of structure Local
Structure description San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben

Ore body information

  • Thickness 1.07M

Controls for ore emplacement

  • Nnw-Trending Fault/Fracture Transverse To Trend Of Pre-Lake City Caldera Eureka Graben. Possible Ne-Trending Fault/Fracture Parallel To Trend Of Eureka Graben

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1883
Discoverer A. Guioneau
Year of last production 1935

Mining district

District name Galena (Henson Creek) District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Gallic-Vulcan Mining Corp.
    Home office Lake City, Co.
    First year 1935
  • Type Owner
    Owner Guioneau (Estate)
    Home office Paradox
    First year 1935

Comments on the production information

  • PARTIAL PRODUCTION RECORD. FIGURES UNAVAILABLE FOR PRIOR YEARS. NO PRODUCTION REPORTED IN 1922-1928.

Comments on the workings information

  • MAIN GALLIC CROSSCUT TUNNEL DRIVEN GENERALLY SW FOR 900 FT, INTERSECTING VEINS AT 640 FT AND 820 FT FROM PORTAL; ABOUT 1000 FT OF DRIFTING AND STOPING ON FIRST VEIN, 140 FT OF DRIFTING ON SECOND VEIN. DRIFT ON SECOND VEIN CONNECTS TO DRIFT FROM 800-FT VULCAN TUNNEL. SHALLOW DISCOVERY SHAFT. TRESTLE CONNECTED ORE HOUSE WITH SMALL CONCENTRATING MILL.

Comments on development

  • VULCAN WAS DISCOVERED IN 1883 AND THE GALLIC SEVERAL YEARS LATER. MINE WORKED ON SMALL SCALE FOR MANY YEARS BY BENJAMIN GUIONEAU AND RELATIVES.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MINE LIES JUST BEYOND NW RIM OF LAKE CITY CALDERA IN UNCOMPAHGRE CALDERA INFILL ROCKS CONSISTING OF EUREKA MEMBER RHYOLITE AND BURNS QUARTZ LATITE. SE OF MINE, RHYOLITE INTRUDED BY OLIGOCENE-MIOCENE MONZONITE PORPHYRY PLUG THAT ALTERED RHYOLITE AROUND IT. GALLIC AND VULCAN VEINS TREND N 7 TO 15 W, DIP 50 TO 80 SW. VEIN SHOWS POST-MINERALIZATION BRECCIATION AND SECOND STAGE OF MINERALIZATION. ORES CHARACTERIZED BY TELLURIDES, NATIVE AG AND AU, NATIVE TE, AND CERUSSITE (OXIDIZED ORE). MINE LIES IN SLACK'S (1980) QUARTZ/BASE-METAL ASSEMBLAGE, INNER QUARTZ-CHALCOPYRITE ZONE; TELLURIDES ALSO INDICATE OVERPRINT OF THE BARITE/PRECIOUS-METALS ASSEMBLAGE MORE CHARACTERISTIC OF MINES IN THE LAKE DISTRICT TO THE EAST.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1984 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative Colorado resources

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