The Chief Number 1 Shaft is a silver, lead, and zinc mine located in Juab county, Utah at an elevation of 6,558 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: 6,558 Feet (1,999 Meters)
Commodity: Silver, Lead, Zinc
Lat, Long: 39.95083, -112.11639
Map: View on Google Maps
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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.
Chief Number 1 Shaft MRDS details
Site Name
Primary: Chief Number 1 Shaft
Secondary: Chief Consolidated Mine
Secondary: Little Chief
Commodity
Primary: Silver
Primary: Lead
Primary: Zinc
Secondary: Copper
Secondary: Gold
Secondary: Cadmium
Tertiary: Manganese
Location
State: Utah
County: Juab
District: Tintic 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: Chief Consolidated Mining Co.
Home Office: New York, Ny.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1909
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: L
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Thomas Mountains - Tintic Mountains
Mineral Deposit Model
Not available
Orebody
Form: LINEAR
Structure
Type: R
Description: Intense Faulting, Steep Bedding
Type: L
Description: Strong Faulting, Reverse And Normal
Alterations
Alteration Type: L
Alteration Text: Oxidation Of Ore To 2400
Rocks
Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Galena
Gangue: Dolomite
Comments
Comment (Location): DUMP FORMS SOUTH EDGE OF TOWN OF EUREKA ; INFO FROM LAND.ST :1977
Comment (Commodity): WAS AT ONE TIME REPORTEDLY SECOND LARGEST SILVER PRODUCER IN WORLD
Comment (Development): MINING CEASED IN 1957. GROUND LEASED ALONG WITH NUMBER TWO SHAFT TO ASARCO, INC FOR FIFTY YEARS IN DECEMBER, 1979.
Comment (Deposit): DETAIL IS PROVIDED BY MORRIS (1968) PAGE 1059
Comment (Workings): DISTANCES INCLUDE WORKINGS IN ADJACENT MAMMOTH-GRAND CENTRAL GROUND. MAIN SHAFT, WHICH CAVED IN 1970S, REACHED 2350 LEVEL. INTERNAL SHAFTS REACHED 2700, 2900 LEVELS. DRILLING AND SINKING BELOW. GEMINI ZONE ORE WAS MINED TO ELEVATION 4500 FEET MIDWAY BETWEEN BECK AND PAXMAN FAULTS. HERE HIGH PUMPING COSTS AND DIMINISHING ORE GRADE AND SIZE LED TO CESSATION OF WORK.
Comment (Geology): ORE LOCALIZATION IS STRUCTURAL. ALMOST ALL SEDIMENTARY BEDS ARE FAVORABLE FOR ORE.
Comment (Deposit): 4000 GALLONS PER MINUTE OF WATER WERE PUMPED UP TO SINKHOLE 2000 FEET NORTHWEST OF SHAFT ON 1600 LEVEL OF GEMINI MINE. NO RETURN OF THIS WATER INTO DEEP WORKINGS WAS OBSERVED. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): HALL, JOHN G., 1949, HISTORY OF PUMPING AT CHIEF CONSOLIDATED MINE, UTAH: AM. INST. MIN. ENG. TRANS., P. 229-39.
Reference (Deposit): CHIEF CONSOLIDATED MINING CO., 1980, 1981, 1982, ANNUAL REPORT TO STOCKHOLDERS.
Reference (Deposit): MINES REGISTER, 1937, VOLUME XIX, MINES PUBLICATIONS, INC., NEW YORK, P. 227.
Reference (Deposit): MORRIS, H.T., 1968, THE MAIN TINTIC DISTRICT, UTAH, IN RIDGE, J.D., ED., GRATON-SALES VOLUME, A.I.M.E.
Reference (Production): MINES REGISTER 1937 P. 227
Reference (Deposit): MORRIS, H.T., AND LOVERING, T.S., 1979, GENERAL GEOLOGY AND MINES OF THE EAST TINTIC MINING DISTRICT, UTAH AND JUAB COUNTIES, UTAH: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1024, 194 PP.
Reference (Deposit): MORRIS, H.T., 1964, GEOLOGY OF THE EUREKA QUADRANGLE, UTAH AND JUAB COUNTIES, UTAH: U.S. GEOLOGICAL SURVEY BULLETIN 1142-K, P. K1-K29.
Reference (Deposit): LINDGREN, WALDEMAR, AND LOUGHLIN, G.F., 1919, GEOLOGY AND ORE DEPOSITS OF THE TINTIC MINING DISTRICT, UTAH: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 107, 276 PP.
Reference (Deposit): COOK, D.R., ED., 1957, GEOLOGY OF THE EAST TINTIC MOUNTAINS AND ORE DEPOSITS OF THE TINTIC MINING DISTRICTS: UTAH GEOL. SOC. GUIDEBOOK, NO. 12, 183 P.
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