St. Mary's Mining Company Property

The St. Mary's Mining Company Property is a lead, copper, zinc, and silver mine located in Hinsdale county, Colorado at an elevation of 11,119 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

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.

Site Name

Primary: St. Mary's Mining Company Property
Secondary: Patented Claims: Florida, MS 1797
Secondary: Tallahassee, MS 1798
Secondary: St. Gothard, MS 1799
Secondary: Unpatented Claims: Jay Hawk
Secondary: V.C.
Secondary: Dandy
Secondary: Jake Badsky
Secondary: Burrell
Secondary: Mason
Secondary: Herring
Secondary: Overbrook
Secondary: Schewe
Secondary: Peewee
Secondary: Topping
Secondary: Jennie
Secondary: Noller
Secondary: McKee
Secondary: Hampshire
Secondary: Redmon
Secondary: Beard
Secondary: Mother B.
Secondary: Hot Air Nos. 1-12
Secondary: Bryson Placer

Commodity

Primary: Lead
Primary: Copper
Primary: Zinc
Primary: Silver
Tertiary: Antimony

Location

State: Colorado
County: Hinsdale
District: Lake (Lake City) 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

Owner Name: Sunflower Mining Co.
Home Office: Lake City, Co.
Years: 1917 -

Production

Year: 1916
Description: Ap_Grade: ^2 Oz/Ton Ag, 10% Pb, 1% Cu, 25% Zn
Year: 1916
Description: Ap_Grade: ^3.8 Oz/Ton Ag, 10% Pb, 2% Cu, 26.2% Zn

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year Last Production: 1916
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

Alterations

Not available

Rocks

Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Miocene

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

Analytical Data

Not available

Materials

Ore: Chalcopyrite
Ore: Galena
Ore: Sphalerite
Gangue: Quartz

Comments

Comment (Commodity): ORE MINERALS LISTED ABOVE ARE NOT VERIFIED AT THIS MINE BUT ARE BASED ON PROBABLE SIMILARITY WITH OTHER POSTCALDERA MINERALIZATION TO EAST.

Comment (Location): CLAIMS LIE ALONG NE SIDE OF EAST FORK OF ALPINE GULCH NW OF RED MTN. ELEV AND LAT-LONG GIVEN ARE FOR SHAFT AT TOP OF HILL IN S2 SW NW SEC. 18 (EXTENDED SECTION). ; INFO FROM LAND.ST :1977

Comment (Production): PROBABLE PARTIAL PRODUCTION RECORD. FIGURES UNAVAILABLE FOR YEARS PRIOR TO 1916. WHETHER OR NOT FIGURES ABOVE REPRESENT TWO SHIPMENTS IN ONE YEAR IS UNCERTAIN.

Comment (Deposit): DEPOSIT LIES IN SUNSHINE PEAK INTRACALDERA TUFF AND COLLAPSE BRECCIA TOWARD NE SIDE OF LAKE CITY CALDERA. ALTERATION AND MINERALIZATION DUE TO RED MOUNTAIN RHYOLITE FLOW AND DOME INTRUDED ON CALDERA'S NE RING FRACTURE.

Comment (Workings): SHAFT, DRIFTS, CROSSCUTS

References

Reference (Deposit): SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 75, NO. 7, P. 963-991.

Reference (Deposit): MEHNERT, H.H., AND OTHERS, 1979, K-AR AGE OF ALTERATION AT RED MOUNTAIN, LAKE CITY AREA, WESTERN SAN JUAN MOUNTAINS, COLORADO: USGS OPEN-FILE REPT. 79-1642.

Reference (Deposit): COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.

Reference (Deposit): BLM MINERAL SURVEYS MS 1797, 1798, 1799

Reference (Production): COLORADO DIV. MINES ANNUAL OPERATOR REPTS.

Reference (Deposit): IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478

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): LIPMAN, P.W., AND OTHERS, 1976, MULTIPLE AGES OF MID-TERTIARY MINERALIZATION AND ALTERATION IN THE WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 71, NO. 3, P. 571-588.

Colorado Mining Photos

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