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Aztec Mine

Past Producer in Rio Grande county in Colorado, United States with commodities Gold, Silver, Copper
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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. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10014030
MRDS ID D010642
Record type Site
Current site name Aztec Mine
Alternate or previous names Fairview Mine, Aztec No. 1, Aztec No. 2, Claim: Aztec, MS 621a
Related records 10289106

Geographic coordinates

Geographic coordinates: -106.5956, 37.42002 (WGS84)
Elevation 3711
Relative position 0.73 MILES S 21 W FROM SUMMITVILLE

Site location context

Political divisions (FIPS codes)

Rio Grande(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Summitville(quadrangle 1:24,000 scale)

Antonito(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alamosa-Trinchera(hydrologic unit)

Rio Grande Headwaters(hydrologic accounting unit)

Rio Grande Headwaters(hydrologic subregion)

Rio Grande(hydrologic region)

Federal lands

Rio Grande National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Rio Grande

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 037N 004E 30 SE OF SW Colorado

Comments on the location information

  • ON NE SLOPE OF SOUTH MTN 660 FT SW OF IOWA PORTAL. PORTAL NO. 1 ELEV FROM STEVEN AND RATTE (1960, PL. 4). ; INFO FROM LAND.ST :1975

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Secondary

Materials information

Materials Type of material
Barite Gangue

Alteration

  • (Local) Quartz-Alunite Solfataric Alteration

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 Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Rock unit name Quartz Latite Of South Mountain;Summitville Andesite
    Rock description Quartz Latite Of South Mountain;Summitville Andesite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Rock unit name Quartz Latite Of South Mountain;Summitville Andesite
    Rock description Quartz Latite Of South Mountain;Summitville Andesite

Nearby scientific data

(1) -106.5956, 37.42002
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field
Type of structure Local
Structure description Platoro Caldera, Summitville Caldera, Summitville Fault, South Mountain Dome

Controls for ore emplacement

  • Quartz-Alunite Solfataric Replacement Bodies Following Nw-Trending Fractures Near Sw Margin Of South Mountain Feeder Conduit

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1870
Discoverer Theodore Goupil

Mining district

District name Summit (Summitville) District

Land status

Ownership category Private

Workings at the site

  • Type of workings Surface/Underground
    Length 737.62M

Comments on the workings information

  • AZTEC 2 LEVEL CONSISTS OF APPROX 400 FT OF CROSSCUT TUNNEL AND DRIFT LEADING INTO MAJOR STOPE BETWEEN GOLCONDA 1 AND 2 LEVELS. AZTEC 1 WORKINGS CONSIST OF 250 FT OF CROSSCUT TUNNEL, 260-FT AZTEC SHAFT AND GLORY HOLE AND SEVERAL SHORT LEVELS FROM 90 TO 260 FT DEPTH TOTALLING APPROX 970 FT. WINZE CONNECTS AZTEC 1 WORKINGS TO IOWA LEVEL. AZTEC OR SWEDE WINZE SUNK BELOW IOWA LEVEL. AZTEC 1 EXTENSIVELY WORKED TO IOWA LEVEL AND LARGELY STOPED ABOVE 90-FT LEVEL.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit AZTEC 1 AND 2 MINES DEVELOPED ON AZTEC AND TEWKSBURY VEINS. AZTEC VEIN IS OVAL PIPE OF HIGHLY SILICIFIED QUARTZ LATITE SURROUNDED BY ENVELOPED OF SOFT ARGILLIZED ALTERATION ZONE, OVER TOP OF SE EDGE OF PIPE. BETWEEN AZTEC 1 AND IOWA LEVELS, DEPOSIT IS CROSS-SHAPED WITH MAJOR TABULAR PROJECTIONS EXTENDING NW-SE ALONG PREDOMINATE VEIN TREND AND NE-SW ACROSS TREND, SUGGESTING LOCALIZATION AT INTERSECTION OF FRACTURES. BLACK WONDER VEIN AND TEWKSBURY VEIN MAY JOIN ON IOWA LEVEL BENEATH AZTEC 2 WORKINGS. AZTEC 2 DEPOSIT APPEARS TO BE IRREGULARLY ELONGATE PIPE OF VUGGY QUARTZ ROCK IN QUARTZ-ALUNITE ZONE AT NORTH END OF TEWKSBURY VEIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1983 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

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.