Flagstaff Mine

The Flagstaff Mine is a lead and silver mine located in Wasatch county, Utah at an elevation of 9,101 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: Flagstaff Mine

Commodity

Primary: Lead
Primary: Silver
Tertiary: Barium-Barite

Location

State: Utah
County: Wasatch
District: Park 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

Type: Underground

Ownership

Owner Name: New Park Mining Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1871
Year Last Production: 1881
Discovery Year: 1871
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains
Physiographic Detail: Wasatch Mountains

Mineral Deposit Model

Not available

Orebody

Form: LENS

Form: LENS

Structure

Type: R
Description: Uinta-Cottonwood Arch, Cordilleran Hingeline, Sevier Overthrust Belt

Type: L
Description: Northeast Striking Fissure

Alterations

Alteration Type: L
Alteration Text: Oxidation

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Pennsylvanian

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

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

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Pennsylvanian

Analytical Data

Not available

Materials

Ore: Argentite
Ore: Galena
Unknown: Barite

Comments

Comment (Deposit): EARLY AND MOST VOLUMINOUS PRODUCTION CAME FROM A 10 INCH WIDE VEIN OF OXIDIZED PB-AG ORE STRIKING NORTHEAST-SOUTHWEST AND DIPPING NORTHWEST IN QUARTZITE. MINOR MINERALIZATION PRESENT IN FRACTURES NEAR THE FLAGSTAFF MOUNTAIN STOCK

Comment (Location): INFO FROM LAND.ST :1983

Comment (Production): TOTAL PRODUCTION UNKNOWN, BUT MINE WAS ACTIVE NEARLY CONTINUOUSLY FROM 1871 TO 1881

Comment (Development): WAS THE FIRST PRODUCER FROM THE PARK CITY DISTRICT AND SECOND DISCOVERY. LAST RECORDED PRODUCTION IN 1881. INACTIVE WELL BEFORE 1912

Comment (Workings): EARLY DEVELOPMENT COMPRISED OF AN INCLINE SUNK ON EXPOSED, OXIDIZED FISSURE ORE TO A DEPTH OF 400 FT. A SIMILAR INCLINE AND SHAFT WERE SUNK NEARBY.

References

Reference (Deposit): BOUTWELL, J.M., 1912, GEOLOGY AND ORE DEPOSITS OF THE PARK CITY DISTRICT, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 77

Reference (Production): BOUTWELL, J.M., 1912

Reference (Deposit): BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER NO. 111.

Reference (Deposit): BAKER, A.A. CALKINS, F.C., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534

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