Crescent Mine

The Crescent Mine is a lead and silver mine located in Summit county, Utah at an elevation of 8,950 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: Crescent Mine
Secondary: Silver King Coalition Group
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: 1891
Time Period: 1882-1891
Description: Cp_Grade: ^.031 Oz/Ton Au, 11.63 Oz/Ton Ag, 16.86% Pb, 0.31% Cu

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1882
Year Last Production: 1893
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: Sphalerite
Ore: Tetrahedrite
Ore: Galena
Gangue: Quartz
Gangue: Calcite
Unknown: Pyrite

Comments

Comment (Production): SOME ADDITIONAL SMALL PRODUCTION IN 1893

Comment (Location): LOCATION GIVEN FOR CARD IS THE PORTAL OF THE AETNA TUNNEL ; INFO FROM LAND.ST :1983

Comment (Development): FIRST CLAIMS IN AREA LOCATED BY RUFUS WALKER AND ARE DISCOERD BY EHRAIM HANKS IN 1869. IN 1870, THE GREEN MOSNTER, 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 UNITED TO FORM THE KEARNS-KEITH MINE. KEARNS-KEITH MINE. KEARNS-KEITH CONSOLIDATED WITH THE SILVER KING COALITION MINES CO. IN 1908 AND WITH UNITED PARK CITY MINES IN 1953

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 MUST ORE. VEIN ORE BODIES LOCATED IN SHOOTS ALONG THE CRESCENT FISSURE ZONE.

Comment (Workings): WORKINGS INCLUDE OLD WORKING OF CLIMAX, REBELLION, PINON, WALKER, AND BUCKEYE MINES LOCATED NEAR THE CREST OF PIONEER RIDGE. MAIN DEVELOPMENT OF CRESCENT MINE WAS DONE FROM THAYNES CANYON VIA THE AETNA AND ANTELOPE TUNNELS, EXTENDING TOWARDS THE SOUTHEAST FOR ABOUT 2000 FT EACH . NUMEROUS LEVELS, STRIKING NORTHEAST DEVELOP THE CRESCENT FISSURE. BESIDES THE AETNA AND ANTELOPE ADITS, ONE ADIT, FIVE SHAFTS AND TWO PROSPECT PITS ARE LOCATED ON THE NORTHWEST SIDE OF PIONEER AND CRESCENT RIDGES

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

References

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.SL, 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.D., CRITTENDEN, MD.D., JR., AND BROMFIELD, C., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534

Reference (Production): BARNES AND SIMOS, 1968

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.

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