Laclede Shaft

The Laclede Shaft is a lead, gold, copper, and silver mine located in Juab county, Utah at an elevation of 6,319 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: Laclede Shaft
Secondary: Weir Property

Commodity

Primary: Lead
Primary: Gold
Primary: Copper
Primary: Silver

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: Thomas Weir (Estate)
Home Office: Alameda, Ca.

Owner Name: Exxon Minerals Co.
Home Office: Sparks, Nevada

Production

Year: 1905
Time Period: 1898-1905
Material type: ORE
Description: Cp_Grade: ^8.2% Cu, 26.5 Oz Ag, 0.029 Oz Au

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1918
Discovery Year: 1871
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

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: PINCH AND SWELL

Structure

Type: R
Description: North Fractures

Type: L
Description: Clays

Alterations

Alteration Type: L
Alteration Text: Argillization

Rocks

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

Name: Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Analytical Data

Analytical Data: 400 - 500 LEVEL 18.17% CU, 4.3.55 OZ AG, 0.04 OZ AU

Materials

Gangue: Quartz

Comments

Comment (Production): BEST ORE FROM 400 - 500 LEVEL

Comment (Development): SHAFT MAIN ENTRY TO LAST WORK ON WEIR PROPERTY

Comment (Deposit): BEST ORE BELOW 300 FT, PROBABLY ENRICHED

Comment (Workings): 500 LEVEL OF SHAFT PASSED THROUGH SEVEN FT OF 7 PERCENT COPPER ACCORDING TO 1902 NEWSPAPER REPORT

Comment (Geology): APPEARS TO BE STRONGER SYSTEM OF VEIN, HERE THAN AT OTHER PROSPECTS OF TREASURE HILL

Comment (Deposit): AN EARLY DAY OPERATION ; INFO.SRC : 1 PUB LIT

Comment (Location): SOUTH FLANK OF HILL, IN GULOTT ; INFO FROM LAND.ST :1977

References

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): 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.

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): SALT LAKE MINING REVIEW: DECEMBER 15, 1902, PAGE 30.

Reference (Deposit): REPORT ON WEIR CONSOLIDATED GROUP, BY T. WEIR, 1918: UNPUBLISHED REPORT IN WRITER'S FILES.

Reference (Production): WEIR REPORT, 1922

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.