The Gunnison District is a gold and silver mine located in Gunnison county, Colorado at an elevation of 8,520 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: 8,520 Feet (2,597 Meters)
Commodity: Gold, Silver
Lat, Long: 38.47472, -106.91222
Map: View on Google Maps
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Gunnison District MRDS details
Site Name
Primary: Gunnison District
Secondary: Patented Claims: Pure Gold, MS 8430
Secondary: Boulginour, MS 10712
Secondary: Golden Era, MS 10712
Secondary: Gage, MS 10713
Secondary: Hunter, MS 10713
Secondary: W.C. Dillon, MS 10715
Secondary: Syndicate, MS 10716
Secondary: Golden Stair, MS 11268
Commodity
Primary: Gold
Primary: Silver
Secondary: Zinc
Secondary: Lead
Secondary: Copper
Location
State: Colorado
County: Gunnison
District: Gunnison District
Land Status
Land ownership: Private
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.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: District
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Model Name: Massive sulfide, kuroko
Orebody
Not available
Structure
Type: R
Description: Gunnison Uplift, San Juan Volcanic Field, West Elk Centers
Type: L
Description: Gunnison Gold Belt, Iris Syncline, Unnamed Anticline
Alterations
Not available
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Galena
Ore: Chalcopyrite
Ore: Sphalerite
Gangue: Biotite
Gangue: Tourmaline
Gangue: Calcite
Gangue: Quartz
Gangue: Sericite
Gangue: Fluorite
Comments
Comment (Deposit): DISTRICT LIES NW OF GREEN MOUNTAIN DISTRICT. COUNTRY ROCKS CONSIST OF METASEDIMENTARY ROCKS (SCHIST, GNEISS, AND MIGMATITE) CONTAINING LAYERS, LENSES, AND OCCASIONALLY THICK SILLS AND DIKES OF AMPHIBOLITE (METAMORPHOSED GABBRO, BASALT, OR ANDESITE). SEQUENCE IS INTRUDED BY GOLD BASIN QUARTZ DIORITE STOCK JUST SOUTH OF DISTRICT, AND QUARTZ VEINS PROBABLY RELATED TO STOCK CUT AMPHIBOLITE AND METASEDIMENTS. MOST OF DISTRICT LIES ON CREST AND SW LIMB OF PROMINENT NNW-PLUNGING ANTICLINE, WITH FOLIATION TRENDING GENERALLY N 45 E, 45 TO 80 NW. SEVERAL GRANITE DIKES CUT ACROSS FOLIATION AND TREND GENERALLY NW. NO DESCRIPTION OF TYPE OF MINERALIZATION HERE IS AVAILABLE, BUT IT IS BELIEVED TO BE POSTMETAMORPHIC, EPIGENETIC VEIN SIMILAR TO THOSE IN GREEN MOUNTAIN DISTRICT TO SE. THERE, VEINS CONSIST OF QUARTZ-PYRITE+/-BIOTITE+/-SERICITE+/-TOURMALINE+/-CALCITE+/-FLUORITE. DEPOSITS ARE SPATIALLY AND PROBABLY GENETICALLY RELATED TO GOLD BASIN STOCK TO SOUTH.
Comment (Workings): SEVERAL SHAFTS OF UNKNOWN DEPTH; AT LEAST ONE TUNNEL OF UNKNOWN EXTENT; SURFACE PROSPECTS
Comment (Location): DISTRICT LIES ON BOTH SIDES OF STUBBS GULCH AND SW ONTO DIVIDE BETWEEN STUBBS GULCH AND GOLD BASIN CREEK. DISTRICT IS ACCESSIBLE VIA ROAD UP GOLD BASIN CREEK AND STUBBS GULCH (INCLUDING TWO OF ITS UNNAMED TRIBUTARIES) SOUTH FROM GUNNISON; VIA ROAD WEST FROM COLORADO RTE 114. ELEV AND LAT-LONG GIVEN ARE FOR COMMON CORNER OF SECS. 30 AND 31, T49N, R1E AND SEC. 36, T49W, R1W. ; INFO FROM LAND.ST :1976
Comment (Deposit): BECAUSE DISTRICT COMPRISES ONLY SEVERAL PATENTED CLAIMS, FOR WHICH NO DESCRIPTIONS ARE AVAILABLE AND FROM WHICH NO PRODUCTION IS KNOWN, NO INDIVIDUAL RECORDS WERE PREPARED. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Development): EARLY HISTORY OF DISTRICT LARGELY UNKNOWN. DISCOVERIES AND EARLY MINING IN GUNNISON GOLD BELT AREA LED TO ESTABLISHMENT OF SMALL MINING TOWNS OF DUBOIS, SPENCER, VULCAN, MIDWAY, AND CHANCE IN LATE 1880S. POST-1900 RECORDS INDICATE ONLY INTERMITTENT PRODUCTION FROM SEVERAL LARGER MINES, SUCH AS HEADLIGHT, OLD LOT, ANACONDA (GOOSE CREEK DISTRICT), CONTINENTAL (BEAVER CREEK DISTRICT), LUCKY STRIKE AND LULA (GREEN MOUNTAIN DISTRICT). CLAIMS IN GUNNISON DISTRICT WERE SURVEYED AND PATENTED IN 1894-98 PRINCIPALLY BY W.C. DILLON AND PURE GOLD MINING AND MILLING CO. COLORADO DIV. OF MINES RECORDS CITE NO PRODUCTION FROM DISTRICT.
Comment (Commodity): METALS AND MINERALS LISTED ABOVE NOT DEFINITELY KNOWN IN THIS DISTRICT BUT ARE BASED ON PROBABLE SIMILARITY WITH THOSE IN GREEN MOUNTAIN DISTRICT.
References
Reference (Deposit): HEDLUND, D.C., AND OLSON, J.C., 1974, GEOLOGIC MAP OF THE IRIS NW QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1134.
Reference (Deposit): HEDLUND, D.C., AND OLSON, J.C., 1981, PRECAMBRIAN GEOLOGY ALONG PARTS OF THE GUNNISON UPLIFT OF SOUTHWESTERN COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 267-272.
Reference (Deposit): DROBECK, P.A., 1979, GEOLOGY AND TRACE ELEMENT GEOCHEMISTRY OF A PART OF THE GUNNISON GOLD BELT, COLORADO: COLORADO SCHOOL OF MINES M.SC. THESIS T-2251.
Reference (Deposit): DROBECK, P.A., 1981, PROTEROZOIC SYNGENETIC MASSIVE SULFIDE DEPOSITS IN THE GUNNISON GOLD BELT, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 279-286.
Reference (Deposit): AFIFI, A.M., 1981, STRATIGRAPHY, PETROLOGY, AND STRUCTURE OF PRECAMBRIAN METAVOLCANIC ROCKS IN THE IRIS DISTRICT, GUNNISON AND SAGUACHE COUNTIES, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 287-292.
Reference (Deposit): BLM MINERAL SURVEYS MS 8430, 10712, 10713, 10715, 10716, 11268
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