The Quincy Shaft is a lead and silver mine located in Summit county, Utah at an elevation of 8,451 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
Elevation: 8,451 Feet (2,576 Meters)
Commodity: Lead, Silver
Lat, Long: 40.61333, -111.50833
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Quincy Shaft MRDS details
Site Name
Primary: Quincy Shaft
Secondary: Daly West Group
Secondary: United Park City Mines
Secondary: Park Utah Consolidated Mines
Secondary: Putnam Mining Co.
Commodity
Primary: Lead
Primary: Silver
Secondary: Copper
Secondary: Zinc
Secondary: Gold
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
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1901
Year Last Production: 1965
Discovery Year: 1880
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
Type: L
Description: Northeast Striking Fissures
Alterations
Alteration Type: L
Alteration Text: Oxidation To A Depth Of 300 Ft
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene
Analytical Data
Not available
Materials
Ore: Anglesite
Ore: Galena
Ore: Tetrahedrite
Ore: Chalcopyrite
Ore: Malachite
Ore: Sphalerite
Ore: Gold
Gangue: Pyrite
Gangue: Quartz
Comments
Comment (Development): CLAIMS WERE PROBABLY LOCATED IN THE LATE 1880'S OR EARLY 1890'S. CLAIMS LEASED TO COL. W.M. FERRY UNDER THE NAME OF PUTNAM MINING CO., IN 1898 OR 1899 THE QUINCY MINING COMPANY WAS FORMED AND ACTIVE EXPLORATION BEGAN. ORE HIT AT 110 FT LEVEL OF SHAFT AND PRODUCTION BEGAN IN 1901, REACHING 725,000 DOLLARS. IN 1902 IT WAS THE LARGEST PRODUCER OF THE DISTRICT. PROPERTY CONSOLIDATED WITH DALY WEST MINE IN 1902, AS A RESULT OF LAW SUITS CONCERNING THE APEX LAW. QUINCY PLANT WAS CLOSED IN 1904 AND WAS SINCE WORKED THROUGH THE DALY WEST TUNNELS. PROPERTY LATER CONSOLIDATED WITH PARK UTAH MINING CO. IN 1920 AND WITH UNITED PARK CITY MINES IN 1753 PRODUCTION HAS CONTINUED ON A SMALL, INTERMITTENT BASIS THROUGH THE 1960'S
Comment (Workings): THE QUINCY SHAFT HAS LEVELS AT 100, 200, 300 AND 400 FT. FROM THE 400 FT LEVEL A MAIN INCLINE, WITH LEVELS AT REGULAR INTERVALS, CONNECTS WITH THE UPPER WORKINGS OF THE DALY WEST MINE. THE 200 FT LEVEL CONNECTS WITH THE 300 FT LEVEL OF THE LITTLE BELL MINE. SEPARATION OF THE WORKINGS OF THE DALY WEST AND QUINCY MINES IS DIFFICULT BECAUSE OF THEIR EARLY CONSOLIDATION. TOTAL LENGTH OF WORKINGS ESTIMATED AT 6,000 FT
Comment (Geology): FISSURE DEPOSITS LOCATED ALONG FAULT CONTACT BETWEEN WEBER QUARTZITE AND PARK CITY FORMATION, BEDDING DIPS 20 DEGREES TO NORTHWEST
Comment (Location): INFO FROM LAND.ST :1983
Comment (Production): PRODUCTION FIGURES EITHER UNREPORTED OR REPORTED WITH DALY WEST MINE. PROBABLY INCLUDED WITH DALY WEST PRODUCTION AFTER 1901
Comment (Deposit): BOTH BEDDED REPLACEMENT AND VEIN ORE BODIES OCCUR. BEDDED DEPOSITS ARE STRATA BOUND, TABULAR REPLACEMENT ZONES IN THE PARK CITY, FORMATION, GENERALLY LYING WITHIN A FEW 10'S OF FEET FROM FISSURES OR FRACTURE ZONES AND HAVING THICKNESSES OF 4 TO 5 FEET. THE HORIZON IN WHICH REPLACEMENT DEPOSITS OCCUR IS 40 FT ABOVE THE TOP OF THE WEBER QUARTZITE AND IS COMPRISED OF A PURE BLUE LIMESTONE. VEIN DEPOSITS ARE LOCATED WITHIN NORTHEAST STRIKING FAULT ZONES DIPPING MODERATELY TO THE NORTHWEST. THESE FAULT ZONES LIE SOUTH OF THE DALY-ONTARIO FISSURE SYSTEM BUT ARE SIMILAR IN CHARACTER. THESE SAME FAULT ZONES ALSO CONTROL THE DISTRIBUTION OF REPLACEMENT ORE BODIES. REPLACEMENT ORE IS MORE ABUNDANT THAN VEIN ORE. THE REPLACEMENT HORIZON OCCURS AT 110 FT IN THE QUINCY SHAFT AND DIPS 20 DEGREES TO THE NORTHWEST
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): 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: AMER. INST. METALL. ENG., V. II, P. 1102
Reference (Production): BOUTWELL, 1912
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): 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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