The Geyser Group is a silver and gold mine located in Dolores county, Colorado at an elevation of 8,760 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 8,760 Feet (2,670 Meters)
Commodity: Silver, Gold
Lat, Long: 37.755, -108.12389
Map: View on Google Maps
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Geyser Group MRDS details
Site Name
Primary: Geyser Group
Secondary: Unpatented Claims: Aviation
Secondary: Uncle Bim
Secondary: Blue Bird No. 2
Secondary: Wheel of Fortune
Commodity
Primary: Silver
Primary: Gold
Secondary: Lead
Secondary: Copper
Tertiary: Zinc
Location
State: Colorado
County: Dolores
District: Lone Cone (Dunton) District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: San Juan N. F.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Frank And Albert Stampfel
Home Office: Rico, Co.
Years: 1932 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year Last Production: 1950
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Colorado Plateaus
Physiographic Section: Canyon Lands
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Not available
Structure
Type: R
Description: San Juan Uplift, Paradox Basin
Type: L
Description: Rico Dome, Dunton Syncline, Unnamed Faults
Alterations
Not available
Rocks
Name: Gabbro
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Gabbro
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Analytical Data
Analytical Data: ORE ASSAYED 2 TO 4 OZ/TON AG AND 0.4 OZ/TON AU
Materials
Ore: Argentite
Ore: Chalcopyrite
Ore: Galena
Ore: Pyrargyrite
Ore: Sphalerite
Ore: Polybasite
Ore: Pyrite
Gangue: Quartz
Comments
Comment (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.
Comment (Commodity): COMMODITIES AND ORE MINERALS LISTED NOT DEFINITELY KNOWN BUT INFERRED ON BASIS OF PROBABLE SIMILARITY WITH EMMA AND SMUGGLER MINES.
Comment (Production): PROBABLE PARTIAL PRODUCTION RECORD. 1950 IS ONLY DEFINITE YEAR IN WHICH PRODUCTION WAS REPORTED.
Comment (Workings): 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.
Comment (Location): (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
References
Reference (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.
Reference (Deposit): BASTIN, E.S., 1922, SILVER ENRICHMENT IN THE SAN JUAN MOUNTAINS, COLORADO: USGS BULL. 735-D, P. 116-129.
Reference (Deposit): COLORADO DIV. MINES INF. REPTS.
Reference (Production): USBM MINERALS YEARBOOK 1950
Colorado Mining Photos
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