Pride of America Mine

The Pride of America Mine is a gold, lead, zinc, and silver mine located in Hinsdale county, Colorado at an elevation of 9,951 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: Pride of America Mine
Secondary: Patented Claim: Pride of America, MS 5306
Secondary: Unpatented Claim: Pride of Amaerica No. 2

Commodity

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

Location

State: Colorado
County: Hinsdale
District: Galena (Henson 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

Owner Name: H. Martin Davis
Home Office: Grand Junction, Co.
Years: 1977 -

Owner Name: Ada-Mar Mines, Inc.
Home Office: Grand Junction, Co.
Years: 1977 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year Last Production: 1977
Discovery Year: 1888
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, Eureka Graben

Alterations

Not available

Rocks

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

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

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

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

Analytical Data

Not available

Materials

Ore: Sphalerite
Gangue: Quartz

Comments

Comment (Production): PARTIAL PRODUCTION RECORD. FIGURES UNAVAILABLE FOR YEARS PRIOR TO 1967. NO PRODUCTION REPORTED IN 1957 AND 1975.

Comment (Location): MINE LIES ALONG BIG CASINO GULCH ABOUT 1000 FT ABOVE CONFLUENCE WITH HENSON CREEK. ; INFO FROM LAND.ST :1977

Comment (Deposit): DEPOSIT LIES JUST OUTSIDE RIM OF LAKE CITY CALDERA IN UNCOMPAHGRE CALDERA INFILL ROCKS COMPOSED OF EUREKA MEMBER RHYOLITE AND PICAYUNE MEGABRECCIA, COMPOSED OF CHAOTIC MASSES OF PRECALDERA INTERMEDIATE-COMPOSITION ROCKS INTERPRETED TO BE RESULT OF SLUMPING FROM OVERSTEEPENED CALDERA WALLS DURING INITIAL SUBSIDENCE OF UNCOMPAHGRE CALDERA. DEPOSIT IS TRANSVERSE VEIN IN SLACK'S (1980) QUARTZ/BASE-METAL ASSEMBLAGE, INNER QUARTZ-CHALCOPYRITE ZONE. TWO VEINS INTERSECTED: FIRST VEIN TRENDS ABOUT N 45 E AND EXTENDS SW INTO BIG CASINO WORKINGS; SECOND VEIN TRENDS ABOUT EAST-WEST AND DIPS 60 S. EARLIER MINERAL IN VEIN APPEARS TO BE GALENA, BROKEN WITH AREAS OF ARGENTIFEROUS TETRAHEDRITE SCATTERED THROUGH IT, AND SUBORDINATE SPHALERITE AND LITTLE GANGUE.

Comment (Workings): CDM REPORTS DESCRIBE WORKINGS AS NEWER TUNNEL DRIVEN (PRESUMABLY) SOUTH OR SE, INTERSECTING VEIN AT 150 FT FROM PORTAL; BY 1967, 600 FT OF DRIFT WAS DRIVEN TOWARD OLDER BIG CASINO WORKINGS. FROM 1968 TO 1977, NEWER WORKINGS INCLUDED 20-FT RAISE, AND 60-FT CROSSCUT AT 94 FT FROM PORTAL, OTHER NEWER RAISES AND DRIFTS. OLD TUNNEL IN BIG CASINO GULCH DRIVEN GENERALLY SSW, EXTENT UNKNOWN. IRVING AND BANCROFT (1911) CITE 60-FT SHAFT.

References

Reference (Deposit): IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 81.

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

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): COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.

Reference (Deposit): BLM MINERAL SURVEY MS 5306

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

Colorado Mining Photos

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