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Geyser Group

Past Producer in Dolores county in Colorado, United States with commodities Silver, Gold, Lead, Copper, Zinc
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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. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10014231
MRDS ID D010907
Record type Site
Current site name Geyser Group
Alternate or previous names Unpatented Claims: Aviation, Uncle Bim, Blue Bird No. 2, Wheel of Fortune
Related records 10288201

Geographic coordinates

Geographic coordinates: -108.12454, 37.75501 (WGS84)
Elevation 2670
Relative position 6.7 MILES N 50 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

Dolores Peak(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 012W 01 Colorado

Comments on the location information

  • (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). MINE LIES ON SOUTH SIDE OF WEST DOLORES RIVER AND ON SOUTH SIDE OF GEYSER CREEK ABOUT 2 MILES BELOW DUNTON. ELEV AND LAT-LONG GIVEN ARE FOR LOWER TUNNELS. ; INFO FROM LAND.ST :1975

Commodities

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

Comments on the commodity information

  • COMMODITIES AND ORE MINERALS LISTED NOT DEFINITELY KNOWN BUT INFERRED ON BASIS OF PROBABLE SIMILARITY WITH EMMA AND SMUGGLER MINES.

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Galena Ore
Polybasite Ore
Pyrargyrite Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Analytical data

Result ORE ASSAYED 2 TO 4 OZ/TON AG AND 0.4 OZ/TON AU

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 Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Rock unit name Microgabbro
    Rock description Microgabbro
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Cutler Formation;Dolores Formation
    Rock description Cutler Formation;Dolores Formation

Nearby scientific data

(1) -108.12454, 37.75501
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Uplift, Paradox Basin
Type of structure Local
Structure description Rico Dome, Dunton Syncline, Unnamed Faults

Ore body information

  • Thickness 1.52M

Controls for ore emplacement

  • Faults Subparallel To But Outside Graben

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1950

Mining district

District name Lone Cone (Dunton) District

Land status

Ownership category National Forest
Area name San Juan N. F.

Ownership information

  • Type Owner-Operator
    Owner Frank And Albert Stampfel
    Home office Rico, Co.
    First year 1932

Comments on the production information

  • PROBABLE PARTIAL PRODUCTION RECORD. 1950 IS ONLY DEFINITE YEAR IN WHICH PRODUCTION WAS REPORTED.

Comments on the workings information

  • CDM REPORTS DESCRIBE WORKINGS AS LOWER TUNNEL DRIVEN AS CROSSCUT GENERALLY SE FOR 75 FT, THENCE AS 150-FT DRIFT WITH TWO INCLINED RAISES TO UPPER TUNNEL. UPPER TUNNEL LIE 35 FT HIGHER THAN LOWER TUNNEL, DRIVEN 225 FT AS DRIFT. ALSO, OLDER CROSSCUT 40 FT WEST OF LOWER TUNNEL, OPEN CUTS AND TRANCHES, AND SMALL FLOTATION MILL.

Reference information

Bibliographic references

  • Deposit

    BUSH, A.L., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE DOLORES PEAK QUADRANGLE, DOLORES AND SAN MIGUEL COUNTIES, COLORADO: USGS MAP GQ-536.

  • Deposit

    BASTIN, E.S., 1922, SILVER ENRICHMENT IN THE SAN JUAN MOUNTAINS, COLORADO: USGS BULL. 735-D, P. 116-129.

  • Deposit

    COLORADO DIV. MINES INF. REPTS.

  • Production

    USBM MINERALS YEARBOOK 1950

General comments

Subject category Comment text
Deposit MINE DEVELOPED IN CUTLER AND DOLORES FM RED BEDS ON PROBABLE VEIN ASSOCIATED WITH FAULT SITUATED WELL BEYOND BUT SUBPARALLEL TO EMMA FAULT AND GRABEN, AND TRENDING N 45 W, TERMINATING ON CROSS FAULT TRENDING GENERALLY N 75 E. H2S-BEARING SPRING SITUATED ON NW-TRENDING FAULT AT MINE, AND THERMAL SPRING LOCATED AT INTERSECTION OF TWO FAULTS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-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.