Daly Shaft No. 1

The Daly Shaft No. 1 is a silver mine located in Summit county, Utah at an elevation of 8,100 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: Daly Shaft No. 1  

State:  Utah

County:  Summit

Elevation: 8,100 Feet (2,469 Meters)

Primary Mineral: Silver

Lat, Long: 40.61806, -111.50861

Map: View on Google Maps

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.


Satelite image of the Daly Shaft No. 1

Daly Shaft No. 1 MRDS details

Site Name

Primary: Daly Shaft No. 1
Secondary: Daly Group
Secondary: United Park City Mines


Commodity

Primary: Silver
Secondary: Lead
Secondary: Zinc
Secondary: Gold
Tertiary: 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: Underground


Ownership

Owner Name: United Park City Mines Co.


Production

Year: 1901
Description: Ap_Grade: ^52.916 Oz/Ton Ag, .059 Oz/Ton Au
Year: 1900
Description: Ap_Grade: ^71.547 Oz/Ton Ag, .120 Oz/Ton Au
Year: 1899
Description: Ap_Grade: ^83.955 Oz/Ton Ag, .152 Oz/Ton Au
Year: 1903
Description: Ap_Grade: ^58.156 Oz/Ton Ag, .066 Oz/Ton Au
Year: 1902
Description: Ap_Grade: ^86.551 Oz/Ton Ag, .098 Oz/Ton Au
Year: 1897
Description: Ap_Grade: ^36.829 Oz/Ton Ag, .048 Oz/Ton Au
Year: 1896
Description: Ap_Grade: ^25.295 Oz/Ton Ag, .011 Oz/Ton Au
Year: 1895
Description: Ap_Grade: ^25.430 Oz/Ton Ag, .003 Oz/Ton Au
Year: 1894
Description: Ap_Grade: ^33.792 Oz/Ton Ag, .035 Oz/Ton Au
Year: 1893
Description: Ap_Grade: ^38.585 Oz/Ton Ag, .044 Oz/Ton Au
Year: 1892
Description: Ap_Grade: ^43.583 Oz/Ton Ag, .047 Oz/Ton Au
Year: 1891
Description: Ap_Grade: ^42.479 Oz/Ton Ag, .042 Oz/Ton Au
Year: 1902
Time Period: 1886-1902
Description: Cp_Grade: ^.03 Oz/Ton Au, 58.2 Oz/Ton Ag
Year: 1890
Time Period: 1885-1890
Description: Cp_Grade: ^45.406 Oz/Ton Ag, .045 Oz/Ton Au
Year: 1950
Time Period: 1886-1950
Description: Cp_Grade: ^.0296 Oz/Ton Au, 22.90 Oz/Ton Ag, 1.00% Pb, .98% Zn, .003% Cu
Year: 1904
Description: Ap_Grade: ^69.537 Oz/Ton Ag, .087 Oz/Ton Au
Year: 1898
Description: Ap_Grade: ^129.667 Oz/Ton Ag, .121 Oz/Ton Au


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1886
Year Last Production: 1955
Discovery Year: 1885
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

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


Mineral Deposit Model

Not available


Orebody

Form: TABULAR


Structure

Type: R
Description: Uinta-Cottonwood Arch, Sevier Over Thrust Belt, Park City Anticline

Type: L
Description: Daly-Ontario Fault Zone


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: .034 OZ/TON AU, 22.98 OZ/TON AG, 1.0 % PB, .98 % ZN, .03 % CU


Materials

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


Comments

Comment (Workings): DALY SHAFT NO. 1 IS 1000 FT DEEP, AS OF 1912, AND WAS THE MAIN DEVELOPMENT ON THE DALY PROPERTY. LEVELS ARE EVENLY SPACED AT 100 FT INTERVALS FOR THE LENGTH OF THE SHAFT. EACH LEVEL IS ABOUT 1500 FT LONG AND FOLLOW THE DALY VEIN. THE 800 FT LEVEL IS THE MOST EXTENSIVE LEVEL AND CONNECTS WITH THE 600 FT LEVEL OF THE ONTARIO MINE. TWO MAIN CROSSCUT TUNNELS, THE FEDERAL AND CENTRAL, ENTER THE HILL NEAR THE DALY SHAFT NO.1 AND STRIKE IN A SOUTHERLY DIRECTION. AN ESTIMATE OF THE TOTAL LENGTH OF THE WORKINGS IS 30000 FT

Comment (Geology): MOST MINERALIZATION HAS QUARTZITE AS HANGING WALL, FOOTWALL, OR BOTH

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

Comment (Production): PRODUCTION FIGURES ARE FOR THE ENTIRE DALY PROPERTY, INCLUDING THE DALY SHAFT NO. 2

Comment (Deposit): ORE BODIES LIE EXCLUSIVELY WITHIN FISSURES WHICH ARE A CONTINUATION OF THE ONTARIO VEIN. THE ORE BODIES ARE TABULAR WITH LENTICULAR ENLARGEMENTS. SOME PORTIONS OF THE VEINS ARE ENLARGED UPWARDS, REACHING A MAXIMUM WIDTH OF 140 FT. VEINS USUALLY 20 FT WIDE. ORE SHOOTS REACH THEIR WIDEST EXTENT ABOVE THE 800 FT LEVEL. SIZE OF VEINS AND GRADE OF ORE DECREASES BENEATH THIS POINT. SIX SUB PARALLEL NORTHEAST STRIKING VEINS HAVE BEEN MINED IN A ZONE ABOUT 2800 FT WIDE. FROM NORTH TO SOUTH THE VEINS ARE THE NORTH VEIN, ONTARIO VEIN, DALY VEIN, SOUTH VEIN, MIDDLE VIN, AND DIXIE VEIN. THE DALY VEIN WAS THE GREATEST PRODUCER

Comment (Development): CLAIMS LOCATED BY J.J. DALY IN FEB., 1885 WHO FORMED THE DALY MINING CO. PROPERTY WAS LOCATED FOR THE PURPOSE OF DEVELOPING THE WESTERN EXTENSTION OF THE ONTARIO LODE. PRODUCTION BEGAN IN 1886 AND THE DALY CO. CONTINUED TO SHIP UNTIL 1897. PROPERTY HAS BEEN OPERATED BY LESSEES AND PRODUCED INTERMITTENTLY UNTIL ABOUT 1950. PARK UTAH CONSOLIDATED MINES CO. OWNED A LARGE INTEREST IN THE MINE AND WAS CONSOLIDATED WITH UNITED PARK CITY MINES CO.


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): 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 (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, BARNES AND SIMOS, 1968


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