Kearns-Keith Mine

The Kearns-Keith Mine is a lead and silver mine located in Summit county, Utah at an elevation of 8,999 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: Kearns-Keith Mine  

State:  Utah

County:  Summit

Elevation: 8,999 Feet (2,743 Meters)

Primary Mineral: Lead, Silver

Lat, Long: 40.62306, -111.52972

Map: View on Google Maps

Satelite View

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Satelite image of the Kearns-Keith Mine

Kearns-Keith Mine MRDS details

Site Name

Primary: Kearns-Keith Mine
Secondary: Walker and Webster Apex
Secondary: Sampson
Secondary: Rebellion
Secondary: Climax
Secondary: Pinon
Secondary: Buckeye
Secondary: Boss
Secondary: Silver King Coalition Mines
Secondary: United Park City Mines


Commodity

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


Location

State: Utah
County: Summit
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: Surface/Underground


Ownership

Owner Name: United Park City Mines Co.


Production

Year: 1906
Time Period: 1904-1906
Description: Cp_Grade: ^.043 Oz/Ton Au, 7.05 Oz/Ton Ag, 14.90% Pb, .07% Cu


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1903
Discovery Year: 1869
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: TABULAR

Form: TABULAR


Structure

Type: R
Description: Uinta-Cottonwood Arch, Sevier Overthrust Belt, Park City Anticline, Iron Hollow Syncline

Type: L
Description: Northeast Striking Crescent Fissure Zone, Northwest Dipping Bedding


Alterations

Alteration Type: L
Alteration Text: Oxidation


Rocks

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

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


Analytical Data

Analytical Data: AVERAGE GRADE WAS .043 OZ/TON AU, 7.05 OZ/TON AG, 14.90% PB, 0.07% CU


Materials

Ore: Gold
Ore: Chalcopyrite
Ore: Galena
Ore: Tetrahedrite
Ore: Sphalerite
Gangue: Calcite
Gangue: Quartz
Unknown: Pyrite


Comments

Comment (Deposit): ORE FIRST DISCOVERED ON PROPERTY WAS REPLACEMENT ORE IN THE THAYNES FORMATION AT THE FOOTWALL OF THE CRESCENT FISSURE ZONE. LATER WORKINGS DEVELOPED MAINLY REPLACEMENT TYPE ORES IN THE THAYNES AND PARK CITY FORMATIONS. REPLACEMENT ORE WITHIN 150 FT OF THE CRESCENT FAULT ZONE. REPLACEMENT ORES HOSTED BY PURE LIMESTONE LENSES BETWEEN SANDSTONES OR IMPURE LIMESTONES, JENNY BED OF THE PARK CITY FORMATION PRODUCED THE MOST ORE. VEIN ORE BODIES LOCATED IN SHOOTS ALONG THE CRESCENT FISSURE ZONE

Comment (Production): NO RECORDS AVAILABLE FOR INDIVIDUAL PRODUCTION OF EARLIER MINES

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

Comment (Development): FIRST CLAIMS IN AREA LOCATED BY RUFUS WALKER AND ORE DISCOVERED BY EPHRAIM HANKS IN 1869. IN 1870, THE GREEN MONSTER, PINON, AND BUCKEYE CLAIMS WERE LOCATED ALONG THE CREST OF PIONEER RIDGE. ORE SHIPPED BY THE PINON AND WALKER AND WEBSTER MINES UNTIL 1875. IN 1880, THE REBELLION AND CLIMAX MINES HIT ORE NORTH OF PIONEER RIDGE. IN 1882, THE CLIMAX, REBELLION, PINON, WALKER, AND BUCKEYE MINES WERE CONSOLIDATED UNDER THE NAME CRESCENT. CRESCENT MINE ACTIVE UNTIL 1891. IN 1903, ALL PROPERTIES ALONG THE CRESCENT FISSURE WERE UNITED TO FORM THE KEARNS-KEITH MINE. KEARNS-KEITH CONSOLIDATED WITH THE SILVER KING COALITION MINES CO. IN 1908 AND WITH UNITED PARK CITY MINES IN 1953

Comment (Geology): CRESCENT FISSURE ZONE STRIKES NORTHEAST, DIPS SOUTHEAST, IS NORMAL,AND HAS A DISPLACEMENT OF ABOUT 1500 FT. CRESCENT ZONE COMPRISED OF FAULTS, FISSURES AND DIKES WITH NUMEROUS SUBSIDIARY HANGING WALL SPLAYS

Comment (Workings): APPROXIMATELY 19000 FT OF UNDERGROUND WORKINGS WERE COMPLETED AS OF 1912. THIS FIGURE EXCLUDES THE 7200 FT LONG ALLIANCE TUNNEL AND THE 1700 FT LONG AETNA AND ANTELOPE TUNNELS. LOCATION GIVEN FOR CARD IS THE PORTAL OF THE DEMOCRAT TUNNEL. THREE SHAFTS ARE PRESENT IN THE MINE AREA, ONE OF WHICH IS THE BOSS SHAFT. NINE PROSPECTS ARE ALSO IN THE MINE AREA. WORKINGS STRADDLE THE GAP BETWEEN PIONEER AND CRESCENT RIDGES. WORKINGS DEVELOP THE CRESCENT FISSURE ZONE OVER A STRIKE LENGTH OF 3000 FT AND A VERTICAL DISTANCE OF 1500 FT. WORKINGS ARE CONNECTED WITH THE SILVER KING WORKINGS VIA THE ALLIANCE TUNNEL


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, 231 PP.

Reference (Deposit): ERIKSON, A.J., (EDITOR), 1968, PARK CITY DISTRICT, UTAH: GUIDEBOOK TO THE GEOLOGY OF UTAH, NO. 22, UTAH GEOLOGICAL SOCIETY.

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, 672 PP.

Reference (Deposit): BARNES, M.P., AND SIMOS, J.S., 1968 ORE DEPOSITS OF THE PARK CITY DISTRICT WITH A CONTRIBUTION ON THE MAYFLOWER LODE, IN ORE DEPOSITS OF THE UNITED STATES: AM. INST. METALL. ENG., V. II, P. 1102

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

Reference (Production): BARNES, M.P., AND SIMOS, J.S., 1968


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