Daly-Judge Mine

The Daly-Judge Mine is a lead, silver, and zinc mine located in Summit county, Utah at an elevation of 8,829 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

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Site Name

Primary: Daly-Judge Mine
Secondary: Old Utah Mine
Secondary: White Pine Mine
Secondary: Anchor Mine
Secondary: Judge Mine
Secondary: Park Utah Consolidated
Secondary: United Park City Mines

Commodity

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

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: 1903
Material type: ORE
Description: Ap_Grade: ^23.24 Oz/Ton Ag, .043 Oz/Ton Au, 16.75% Pb, 13.0% Zn, 9.9% Fe
Year: 1906
Material type: FE MIDD.
Description: Ap_Grade: ^7.64 Oz/Ton Ag, .044 Oz/Ton Au, 7.60% Pb, .32% Cu, 9.87% Zn, 31.10% Fe
Year: 1907
Material type: ZN MIDD.
Description: Ap_Grade: ^6.30 Oz/Ton Ag, .025 Oz/Ton Au, 3.70% Pb, 26.13% Zn, 19.15% Fe
Year: 1906
Material type: ZN MIDD.
Description: Ap_Grade: ^8.22 Oz/Ton Ag, .025 Oz/Ton Au, 4.20% Pb, 25.03% Zn, 16.98% Fe
Year: 1905
Material type: ZN MIDD.
Description: Ap_Grade: ^9.14 Oz/Ton Ag, .023 Oz/Ton Au, 4.70% Pb, 25.11% Zn, 16.57% Fe
Year: 1907
Material type: CONCEN.
Description: Ap_Grade: ^16.30 Oz/Ton Ag, .058 Oz/Ton Au, 31.08% Pb, .19% Cu, 7.98% Zn, 21.27% Fe
Year: 1906
Material type: CONCEN.
Description: Ap_Grade: ^18.4 Oz/Ton Ag, .07 Oz/Ton Au, 33.3% Pb, .17% Cu, 7.0% Zn, 19.64% Fe
Year: 1904
Material type: CONCEN.
Description: Ap_Grade: ^29.20 Oz/Ton Ag, .068 Oz/Ton Au, 51.0% Pb, 6.0% Zn, 12.6% Fe
Year: 1903
Material type: CONCEN.
Description: Ap_Grade: ^28.72 Oz/Zton Ag, .062 Oz/Ton Au, 43.91% Pb, 7.4% Zn, 29.67% Fe
Year: 1907
Material type: ORE
Description: Ap_Grade: ^16.05 Oz/Ton Ag, .056 Oz/Ton Au, 18.61% Pb, .33% Cu, 14.80% Zn, 14.06% Fe
Year: 1906
Material type: ORE
Description: Ap_Grade: ^20.67 Oz/Ton Ag, .091 Oz/Ton Au, 24.61% Pb, .41% Cu, 14.62% Zn, 16.04% Fe
Year: 1905
Material type: ORE
Description: Ap_Grade: ^Production Was 34369 Oz Ag, 86.17 Oz Au, 361412 Lbs Pb, And 1863980 Lbs Zn
Year: 1907
Material type: FE MIDD.
Description: Ap_Grade: ^6.20 Oz/Ton Ag, .040 Oz/Ton Au, 7.00% Pb, .22% Cu, 9.00% Zn, 32.08% Fe
Year: 1904
Material type: ORE
Description: Ap_Grade: ^Production Was 35631 Oz Ag, 80.98 Oz Au, 1240799 Lbs Pb, And 143527 Lbs Zn
Year: 1907
Time Period: 1890-1907
Material type: ORE
Description: Cp_Grade: ^20 Oz/Ton Ag, .063 Oz/Ton Au, 20% Pb, 14% Zn, .37% Cu, 13% Fe

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1890
Year Last Production: 1955
Discovery Year: 1877
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

Form: TABULAR

Structure

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

Type: L
Description: Northeast Striking Fissures

Alterations

Alteration Type: L
Alteration Text: Oxidation

Rocks

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

Analytical Data

Analytical Data: AVERAGE GRADE IS 25.67 OZ/TON AG, .043 OZ/TON AU, 41.0% PB, AND 8.87% ZN

Materials

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

Comments

Comment (Development): PRIOR TO CONSOLIDATION WITH PARK UTAH CONSOLIDATED MINES IN THE 1920'S, THE DALY-JUDGE PROPERTY COMPRISED 138 PATENTED CLAIMS COVERING AN AREA 4000 FT BY 15000 FT, AND INCLUDED THE OLD UTAH MINE, WHITE PINE MINE, ANCHOR MINE, AND THE JONES CLAIMS. ORE WAS STRUCK IN A 100 FT SHAFT ON THE WHITE PINE MINE AS EARLY AS 1878 WITH PRODUCTION STARTING IN 1881. ANCHOR SHAFT STARTED IN 1885. IN 1888 A DRAIN TUNNEL, 6600 FT LONG WITH A PORTAL IN EMPIRE CANYON, WAS STARTED. DRAIN TUNNEL COMPLETED BY 1890 AND MINING RESUMED. ACTIVE MINING CONTINUED UNTIL THE 1920'S. INTERMITTENT MINING UNTIL 1950 OR 1951. CURRENTLY PART OF UNITED PARK CITY MINES CO. HOLDINGS

Comment (Deposit): Discovery Year: LATE 1870'S

Comment (Location): LOCATION GIVEN IS FOR THE MAIN OPENING OF THE DALY-JUDGE MINE, OTHERWISE KNOWN AS THE ANCHOR SHAFT ; INFO FROM LAND.ST :1983

Comment (Production): COMBINED PRODUCTION FOR THE DALY WEST AND DALY JUDGE MINES WAS FROM 1899-1951, 4265346 TONS OF ORE CONTAINING 79051 OZ AU, 51264289 OZ AG, 744384966 LBS PB, 401616365 LBS ZN, AND 31831461 LBS CU

Comment (Deposit): BOTH BEDDED AND REPLACEMENT ORES PRESENT. REPLACEMENT ORES LOCATED SOUTHEAST OF THE DALY-ONTARIO FAULT ZONE FOR A DISTANCE OF UP TO 1500 FT. REPLACED HORIZON IS THE JENNY BED, LOCATED ABOUT 100 FT ABOVE THE TOP OF THE WEBER QUARTITE, WITHIN THE PARK CITY FORMATION. ANOTHER REPLACEMENT HORIZON WAS DISCOVERED IN 1923 NEAR THE VERY TOP OF THE PARK CITY FORMATION. INDIVIDUAL REPLACEMENT ORE BODIES ARE STRATABOUND WITH BEDDING DIPPING 22 DEGREES TO THE NORTH. EACH ORE BODY IS WITHIN 200 FEET OF 4 MAJOR FISSURES STRIKING NORTHEAST. FISSURES ARE NAMED, FROM NORTH TO SOUTH, THE DALY WEST-DALY-JUDGE, ROLL, MIDDLE, AND BACK VEINS. FISSURE DEPOSITS ARE COINCIDENT WITH THE FOUR VEINS MENTIONED ABOVE. REPLACEMENT ORES VOLUMETRICALLY MORE IMPORTANT

Comment (Workings): ANCHOR SHAFT IS 1600 FT DEEP. CROSSCUT LEVELS AT 500, 700, 1200, 1400, 1500, AND 1600 FT WITH A DISTANCE OF 2100 FT EACH. LEVELS AT 500, 700, 1200, 1300, 1400, AND 1500 FT ARE 1000 FT LONG EACH. LEVELS AT 1200 AND 1400 FT ARE MORE THAN 3000 FT LONG. AREA OF UNDERGROUND WORKINGS IS 2100 BY 3000 FT. DRAIN TUNNEL IS 6600 FT LONG ON THE 1200 FT LEVEL. NEARBY WORKINGS INCLUDE SIX PROSPECT ADITS AND TWO PROSPECT PITS. FIGURES ABOVE WERE CURRENT IN 1912

Comment (Geology): GREAT THICKNESS OF LIMESTONE OCCURS ALONG DALY-ONTARIO FAULT ZONE DUE TO NEAR JUXTAPOSITION OF PARK CITY FORMATION AND THAYNES FORMATION. GENTLE SYNCLINE IN FOOTWALL.

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.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: AM. INST. METALL. ENG., V. II, P. 1102

Reference (Production): BOUTWELL, 1912

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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