The Dubois Mine is a gold and silver mine located in Gunnison county, Colorado at an elevation of 8,061 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: 8,061 Feet (2,457 Meters)
Commodity: Gold, Silver
Lat, Long: 38.34944, -107.17944
Map: View on Google Maps
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Dubois Mine MRDS details
Site Name
Primary: Dubois Mine
Secondary: Patented Claims: Jessie, MS 14471
Secondary: Adair, MS 14471
Secondary: Menlo, MS 4471
Secondary: Aunt Hattie, MS 14471
Secondary: Aunt Carrie, MS 14471
Secondary: Capitola, MS 14675a
Secondary: Victor, MS 14675a
Secondary: Hayward, MS 14675a
Secondary: W.S. Chenoweth, MS 14675a
Secondary: Pride of Denver, MS 14675a
Secondary: Maudie, MS 14675a
Secondary: Lucky J., MS 14675a
Secondary: Capitola Mill Site, MS 14675b
Secondary: Marguerita, MS 15282a
Secondary: Mary P.J., MS 15282a
Secondary: Menlo Mill Site, MS 15282b
Commodity
Primary: Gold
Primary: Silver
Tertiary: Copper
Tertiary: Lead
Tertiary: Zinc
Tertiary: Thorium
Location
State: Colorado
County: Gunnison
District: Goose Creek 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: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Gunnison Uplift, San Juan Volcanic Field
Type: L
Description: Gunnison Gold Belt, Iron Hill Alkalic Complex, Cimarron Fault, Unnamed Fault, Tolvar Peak Stock
Alterations
Not available
Rocks
Name: Syenite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Syenite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Syenite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Ore: Thorite
Gangue: Quartz
Gangue: Ankerite
Gangue: Calcite
Gangue: Limonite
Comments
Comment (Deposit): TYPE OF DEPOSIT NOT EXACTLY KNOWN BUT IS ASSUMED TO BE SIMILAR TO STRATABOUND MASSIVE SULFIDE DEPOSITS OF MINES TO EAST. QUARTZ DIORITE STOCK INTRUDES DUBOIS GREENSTONE IRREGULARLY BUT GENERALLY ALONG GREENSTONE FOLIATION TRENDING GENERALLY N 40 TO 60 E, VERTICAL. SEQUENCE IS CUT BY PRINCIPAL FAULT TRENDING N 27 W. ON HILLSIDE ABOVE MINE ARE NE-TRENDING QUARTZ VEIN AND LEUCOGRANITE/QUARTZ MONZONITE DIKE AND LENSOID BODY. TH OCCURS IN QUARTZ VEINS ABOVE MINE IN ADAIR GROUP. AT DUBOIS WORKINGS BURBANK (1951) NOTED CU-PB-ZN SULFIDES AND PYRITE. BURBANK MEASURED GREATEST RADIOACTIVITY IN ONE OF DUBOIS MINE ADITS 500 FT UNDERGROUND IN RELATIVELY UNOXIDIZED CARBONATE VEIN CONTAINING SULFIDES. VEIN EXPOSURES IN ADIT NEAR PORTAL WERE MORE LIMONITIC AND SHOWED LESS RADIOACTIVITY, SUGGESTING THAT OXIDATION OF VEINS AND DISPERSAL OF TH ARE RELATED TO PRESENT EROSION SURFACE.
Comment (Workings): MAIN ADIT DRIVEN GENERALLY SE, EXTENT UNKNOWN. OTHER PROSPECTS AND ADITS
Comment (Location): ON SE SIDE OF GOOSE CREEK ABOUT 1.8 MILES ABOVE CONFLUENCE WITH CEBOLLA CREEK. ; INFO FROM LAND.ST :1975
Comment (Development): MINING FIRST BEGAN HERE PROBABLY IN 1880S, LEADING TO FORMATION OF MINING TOWN OF DUBOIS AND OTHERS TO EAST IN LATE 1880S. CLAIM GROUPS SURVEYED AND PATENTED IN 1901-1902 BY W.S. CHENOWETH AND DUBOIS TUNNEL MINING AND MILLING CO.
References
Reference (Deposit): NELSON, A.P., (NO DATE), MINING DISTRICTS, PRODUCING MINES AND PROSPECTIVE PROPERTIES (OF GUNNISON COUNTY): COLORADO STATE PLAN. COMM. UNPUB. REPT., P. 6.
Reference (Deposit): BLM MINERAL SURVEYS MS 14471, 14675A&B, 15282A&B
Reference (Deposit): SHERIDAN, D.M., AND OTHERS, 1981, PRECAMBRIAN SULFIDE DEPOSITS IN THE GUNNISON REGION, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 273-277.
Reference (Deposit): OLSON, J.C., AND WALLACE, S.R., 1956, THORIUM AND RARE-EARTH MINERALS IN POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO: USGS BULL. 1027-0, P. 704-706.
Reference (Deposit): BURBANK, W.S., 1951, AEC PRELIM. RECON. REPT. D-224 (ADAIR GROUP)
Reference (Deposit): OLSON, J.C., AND HEDLUND, D.C., 1973, GEOLOGIC MAP OF THE GATEVIEW QUADRANGLE, GUNNISON COUNTY, COLORADO: USGS MAP GQ-1071.
Reference (Deposit): OLSON, J.C., AND HEDLUND, D.C., 1981, ALKALIC ROCKS AND RESOURCES OF THORIUM AND ASSOCIATED ELEMENTS IN THE POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO: USGS PROF. PAPER 1049-C, P. 24.
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