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A. B. G. Mine

Past Producer in Dolores county in Colorado, United States with commodities Silver, Lead, Zinc, Copper, Gold
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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. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10014116
MRDS ID D010757
Record type Site
Current site name A. B. G. Mine
Alternate or previous names Burns Group, Patented Claim: A.B.G., MS 6726, Unpatented Claims: Monte Christo, Monaska, F.V.G., Amy, Jenny, Esmerelda, Del Monte, Thayer, Nagara
Related records 10190546

Geographic coordinates

Geographic coordinates: -108.02982, 37.7239 (WGS84)
Elevation 2781
Relative position 2.18 MILES N 1 W FROM RICO

Site location context

Political divisions (FIPS codes)

Dolores(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rico(quadrangle 1:24,000 scale)

Dove Creek(quadrangle 1:100,000 scale)

Cortez(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Dolores(hydrologic unit)

Upper Colorado-Dolores(hydrologic accounting unit)

Upper Colorado-Dolores(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

San Juan 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 Dolores

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 040N 011W 13,24 SW OF SW (13); NW OF NW (24) Colorado

Comments on the location information

  • (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). ON WEST SIDE OF DOLORES RIVER AT NE BASE OF SANDSTONE MOUNTAIN (UNSURVEYED SECTIONS). ELEV AND LAT-LONG GIVEN ARE FROM MCKNIGHT, 1974, PL. 1 (1930 BASE). ; INFO FROM LAND.ST :1975

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue

Analytical data

Result ORE GRADES FROM 1920S AND 1930S CONTAINED 35.2 TO 59 OZ/TON AG, 2.4 TO 3.5% PB, 3.1 TO 6% ZN, 0.6 TO 1.1% CU, 0.05 TO 0.08 OZ/TON AU

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 Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite
    Rock unit name Hornblende Latite Porphyry
    Rock description Hornblende Latite Porphyry
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Hermosa Formation
    Rock description Hermosa Formation

Nearby scientific data

(1) -108.02982, 37.7239
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Uplift, Paradox Basin
Type of structure Local
Structure description Rico Dome, Blackhawk Fault

Ore body information

  • Thickness 1.83M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1891
Discoverer J.W. Burns And Others (Claimants)
Year of last production 1934

Mining district

District name Pioneer (Rico) District

Land status

Ownership category Private
Area name San Juan N. F.

Ownership information

  • Type Operator
    Owner Mines Leasing Syndicate
    Home office Rico, Co.
    First year 1934
  • Type Owner
    Owner Mrs. Elizabeth Barker
    Home office Grand Junction, Co.
    First year 1934

Production statistics

  • Year 1922
    Material ORE AG ZN ACC
    Description Ap_Grade: ^35.2 Oz/Ton Ag, 6% Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 6wt-pct
    Major Ore Silver Silver 994g/mt
  • Year 1930
    Material ORE AG PB ACC
    Description Ap_Grade: ^47.7 Oz/Ton Ag, 2.4% Pb, 3.6% Zn, 0.6% Cu, 0.055 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Gold Gold 0wt-pct
    Minor Copper Copper 1wt-pct
    Major Zinc Zinc 4wt-pct
    Major Ore Lead Lead 2wt-pct
    Major Ore Silver Silver 1347g/mt
  • Year 1934
    Description Ap_Grade: ^44 Oz/Ton Ag, 0.07 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Gold Gold 2g/mt
    Major Ore Silver Silver 1242g/mt
  • Year 1934
    Description Ap_Grade: ^47 Oz/Ton Ag, 0.08 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 1327g/mt
    Minor Gold Gold 2g/mt
  • Year 1934
    Description Ap_Grade: ^48 Oz/Ton Ag, 0.07 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Gold Gold 2g/mt
    Major Ore Silver Silver 1355g/mt
  • Year 1934
    Description Ap_Grade: ^58.89 Oz/Ton Ag, 3.5% Pb, 3.1% Zn, 1.1% Cu, 0.0758 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 1663g/mt
    Minor Gold Gold 2g/mt
    Major Zinc Zinc 3wt-pct
    Major Ore Lead Lead 4wt-pct
    Minor Copper Copper 1wt-pct
  • Year 1934
    Description Ap_Grade: ^About 75 Oz/Ton Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 2118g/mt

Comments on the production information

  • PROBABLE PARTIAL PRODUCTION RECORD. PRODUCTION, IF ANY, FOR YEARS PRIOR TO 1922 UNKNOWN. APPARENTLY NO PRODUCTION FOR INTERVENING YEARS LISTED ABOVE AND AFTER 1934. LAST FOUR PRODUCTION FIGURES FOR 1934 REPRESENT INDIVIDUAL SHIPMENTS TO SMELTER.

Comments on the workings information

  • OLDER TUNNEL (CAVED) LOCATED 75 FT ABOVE AND 75 FT SOUTH OF MAIN TUNNEL, EXTENT UNKNOWN. MAIN DRIFT TUNNEL DRIVEN GENERALLY WEST FOR 500 FT, WITH WINZE AT 85 FT FROM PORTAL, RAISE AT 300 FT, 100-FT WINZE AT 350 FT, AND 40-FT RAISE AT 360 FT.

Comments on development

  • EARLY HISTORY UNKNOWN, BUT MINE PRODUCED LITTLE IF ANY ORE THROUGH EARLY 1900S. MINES LEASING SYNDICATE OPERATED PROPERTY FROM 1929-1934 AND CONDUCTED SOME EXPLORATION AND DEVELOPMENT AND PRODUCED SMALL AMOUNT OF ORE THAT WAS SHIPPED TO INTERNATIONAL SMELTING CO. IN TOOELE, UT.

Reference information

Bibliographic references

  • Deposit

    MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723.

  • Deposit

    PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.

  • Deposit

    CROSS, WHITMAN, 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130, P. 16-17.

  • Deposit

    COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.

  • Production

    COLORADO DIV. MINES ANNUAL OPERATOR REPTS.

General comments

Subject category Comment text
Deposit LIMESTONE, SANDSTONE, AND SHALE OF MIDDLE HERMOSA FM STRIKE NE AND DIP 14 NW AT MINE AREA. SEQUENCE CUT BY HORNBLENDE LATITE PORPHYRY SILLS AND BY BLACKHAWK FAULT OR BRANCHES OF IT, TRENDING GENERALLY N 50 W AND DOWNDROPPED 65 FT ON NE. VEIN CARRIES SULFIDES AND PYRITE IN GANGUE OF QUARTZ AND CALCITE. PRESENCE OF REPLACEMENT-TYPE DEPOSIT ASSOCIATED WITH FAULT AND SILLS IS UNCONFIRMED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-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.