Kate Mine

The Kate Mine is a silver mine located in Custer county, Colorado at an elevation of 7,976 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

Satelite View

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Site Name

Primary: Kate Mine
Secondary: Silver Bar

Commodity

Primary: Silver
Secondary: Lead
Secondary: Iron
Secondary: Copper

Location

State: Colorado
County: Custer
District: Silver Cliff 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

Type: Underground

Ownership

Not available

Production

Year: 1800
Time Period: Late 1800s
Mined: 9000.000 mt
Material type: silver ore
Description: Cp_Grade: ^10 Oz/Ton Enriched To 100 Oz/Ton
Year: 1935
Material type: AG ORE
Description: Ap_Grade: ^4.79 Oz/Ton Ag, 6.0% Pb, 2.05% Cu, 32% Fe
Year: 1934
Material type: AG ORE
Description: Ap_Grade: ^35 Oz/Ton Ag, 6.5% Pb, .75% Cu, 33.6% Fe, 2.75% S
Year: 1919
Material type: AG ORE
Description: Ap_Grade: ^40 Oz/Ton Ag, 6% Cu, 5% Pb
Year: 1921
Material type: AG ORE
Description: Ap_Grade: ^20 Oz/Ton Ag

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Discovery Year: 1885
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

Model Name: Epithermal veins

Orebody

Not available

Structure

Type: R
Description: Silver Cliff Volcanic Center, Wet Mtns, Wet Mtn Valley

Type: L
Description: Silver Cliff Graben, Fault, North-Trending Faults

Alterations

Alteration Type: L
Alteration Text: Weakly Argillized

Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Analytical Data

Not available

Materials

Ore: Chalcopyrite
Ore: Pyrite
Ore: Bromyrite
Ore: Cerargyrite
Ore: Galena
Ore: Argentite
Gangue: Barite
Gangue: Fluorite

Comments

Comment (Location): 0.3 MILE NORTH OF CHLORIDE GULCH ; INFO FROM LAND.ST :(1976)

Comment (Commodity): CERARGYRITE OCCURS AS FILMS AND SHOT-LIKE GRAINS

Comment (Workings): SHAFTS, AT LEAST THREE LEVELS, DRIFTS; SILVER BAR MILL USED CYANIDE PROCESS FOR MILLING ORE

Comment (Deposit): Discovery Year: 1880'S

Comment (Deposit): "PAY SEAM" 18 INCHES WIDE, EXTENDING TO 3 FT WIDE

References

Reference (Deposit): 5) KOCH, G.S., JR., 1971, STATISTICAL ANALYSIS OF ASSAY DATA FROM THE ROUND MOUNTAIN SILVER PROSPECT, CUSTER COUNTY, COLORADO: USBM REPORT OF INVESTIGATIONS 7486, 32 P.

Reference (Deposit): SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000.

Reference (Production): EMMONS, S.F., 1896, COLO. DIV. MINES INSPECTION RECORDS

Reference (Deposit): CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P 263-403.

Reference (Deposit): EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472.

Reference (Deposit): FIELDMAN, D.W. AND CROWLEY, F.P., 1980, SILVER DEPOSITS IN THE SOUTHERN PORTION OF THE SILVER CLIFF CALDERA, IN SILVER CLIFF VOLCANIC CENTER AND TALLAHASSEE CREEK URANIUM DEPOSITS: DENVER REGIONAL EXPLORATION GEOLOGISTS GUIDEBOOK, P. 1-14.

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.