Keystone and Hard Times Mine

The Keystone and Hard Times Mine is a copper and gold mine located in Juab county, Utah at an elevation of 6,460 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: Keystone and Hard Times Mine  

State:  Utah

County:  Juab

Elevation: 6,460 Feet (1,969 Meters)

Commodity: Copper, Gold

Lat, Long: 39.56056, -113.03750

Map: View on Google Maps

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Satelite image of the Keystone and Hard Times Mine

Keystone and Hard Times Mine MRDS details

Site Name

Primary: Keystone and Hard Times Mine


Commodity

Primary: Copper
Primary: Gold
Secondary: Silver


Location

State: Utah
County: Juab
District: Detroit 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: Utah Central Mining Co.
Years: 1933 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
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: Drum Mountains


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: R
Description: Drum Mtns Homocline

Type: L
Description: Keystone Fault


Alterations

Alteration Type: L
Alteration Text: Limonitic


Rocks

Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian


Analytical Data

Analytical Data: FROM BOTTOM OF DRIFT 50 FT BELOW BOTTOM OF PIT: 6.72% CU, 0.40 OZ AG, 0.04 OZ AU
Analytical Data: ALSO 21.17% CU, 0.50 OZ AG, 0.27 OZ AU AVERAGE FROM DUMP (1916): 8% CU, 1.70 OZ AG, 0.12 OZ AU: ANOTHER DUMP 7.6% CU, 3.0 OZ AG, 0.68 OZ AU


Materials

Ore: Gold
Ore: Malachite


Comments

Comment (Deposit): SURFACE QUARRY OPENED A VEIN 60-100 IN WIDTH. SHAFT IS 632 FT DEEP. THE OPEN PIT PRODUCED HIGH GRADE CU ORE CARRYING 2-3 DOLLAR AU (1916 PRICES)

Comment (Workings): WORKINGS CONSISTS OF LEVELS AT 100, 200, 300, 425, 498, AND 632; LEVEL 100 HAS 100 FT OF WORKINGS; LEVEL 200 HAS 350 FT; 300 HAS 60 FT; 425 HAS 275 FT, 498 HAS 22 FT; 632 HAS 142 FT.

Comment (Location): SECTION SUBDIVISIONS NE 1/4 NW 1/4 SW 1/4 36 FOR KEYSTONE, NE 1/4, NE 1/4, SE 1/4, 35 FOR HARDTIMES

Comment (Development): LITTLE EFFORT WAS MADE FOR EXPLORATION IN THE BEGINNINGS OF THIS MINE. THE OPERATORS WERE SATISFIED WITH HIGH GRADING. THERE MAY STILL BE CONSIDERABLE LOW GRADE ORE UNDEVELOPED

Comment (Production): ITEMS 1-4 ARE FOR OCTOBER AND NOVEMBER 1933. SMELTER RETURNS: 11-26-1915 44,668 LB AT $11.26/T = $250.29 NET; 11-27-1916: 38,376 LB AT $33.20/T = $635.10 NET


References

Reference (Analytical Data): SRC.REF: COMPANY REPORT APRIL 1916

Reference (Deposit): EVERTS, M.L., 1980, UT. GEOL. & MIN. SURVEY, ON SITE INVESTIGATION

Reference (Deposit): CRANE, G.W., 1934, HOLDINGS OF UTAH CENTRAL MINES COMPANY: COMPANY REPORT.

Reference (Deposit): 1920 RECON BUTLER, USGS PP 111

Reference (Deposit): 1961 RECON CRITTENDEN, USGS BULL. 1082-H

Reference (Production): CRANE G.W., 1934, COMPANY REPORT: UTAH CENTRAL MINES CO.


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