Monticello Mine

The Monticello Mine is a copper and gold mine located in Hinsdale county, Colorado at an elevation of 10,961 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

Name: Monticello Mine  

State:  Colorado

County:  Hinsdale

Elevation: 10,961 Feet (3,341 Meters)

Primary Mineral: Copper, Gold

Lat, Long: 37.94528, -107.49861

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Monticello Mine

Monticello Mine MRDS details

Site Name

Primary: Monticello Mine


Commodity

Primary: Copper
Primary: Gold


Location

State: Colorado
County: Hinsdale
District: Park (Whitecross, Burrows Park, Adams) District


Land Status

Land ownership: BLM Administrative Area
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
Deposit Type: Vein
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: San Juan Volcanic Field, San Juan Depression

Type: L
Description: San Juan-Uncompahgre Calderas, Lake City Caldera, Silverton Caldera, Eureka Graben


Alterations

Not available


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Ordovician

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic


Analytical Data

Not available


Materials

Ore: Pyrite
Ore: Chalcopyrite
Gangue: Calcite
Gangue: Quartz


Comments

Comment (Deposit): KRASOWSKI'S MAP SHOWS VEIN TO LIE IN FAULT CUTTING PRECAMBRIAN GRANITE AND TRENDING GENERALLY N 35 TO 45 E, LYING SUBPARALLEL TO AND SE OF FAULTS ON WHICH CLEVELAND MINE DEVELOPED. WOOLSEY NOTED THAT GRANITE WAS HEAVILY PYRITIZED NEAR THE THREE OR MORE QUARTZ VEINS AGGREGATING 1.5 FT IN WIDTH. ORE REPORTEDLY WAS CHALCOPYRITE AND PYRITE MIXED WITH QUARTZ AND CALCITE.

Comment (Workings): WOOLSEY (1907) DESCRIBES WORKINGS AS 50-FT-DEEP SHAFT WITH SHORT SW DRIFT FROM BOTTOM; TUNNEL OF UNKNOWN EXTENT.

Comment (Location): WOOLSEY (1907 GIVES LOCATION AS MOUTH OF CLEVELAND GULCH ADJACENT TO WHITECROSS. ELEV AND LAT-LONG GIVEN ARE FOR SHAFT ON HILLSIDE 0.17 MILE NNW OF WHITECROSS, AS PLOTTED BY KRASOWSKI (1976) (UNSURVEYED SECTION). ; INFO FROM LAND.ST :1977


References

Reference (Deposit): BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY. COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.

Reference (Deposit): LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.

Reference (Deposit): WOOLSEY, L.H., 1907, LAKE FORK EXTENSION OF THE SILVERTON MINING AREA, COLORADO: USGS BULL. 315, P. 26-30.

Reference (Deposit): LUEDKE, R.G., AND BURBANK, W.S., 1975, PRELIMINARY GEOLOGIC MAP OF THE HANDIES PEAK QUADRANGLE, COLORADO: USGS OPEN-FILE REPT. OFR-75-431.

Reference (Deposit): KRASOWSKI, D.J., 1976, GEOLOGY AND ORE DEPOSITS OF BURROWS PARK, HINSDALE COUNTY, COLORADO: COLORADO STATE UNIV. M.SC. THESIS, 111 P.