Last Chance Prospects

The Last Chance Prospects is a silver and lead mine located in Salt Lake county, Utah at an elevation of 8,232 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: Last Chance Prospects  

State:  Utah

County:  Salt Lake

Elevation: 8,232 Feet (2,509 Meters)

Primary Mineral: Silver, Lead

Lat, Long: 40.57917, -111.65500

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 Last Chance Prospects

Last Chance Prospects MRDS details

Site Name

Primary: Last Chance Prospects
Secondary: Last Chance Claims
Secondary: August Johnson Group


Commodity

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


Location

State: Utah
County: Salt Lake
District: Little Cottonwood District


Land Status

Land ownership: National Forest
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

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

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


Mineral Deposit Model

Not available


Orebody

Form: UNKNOWN


Structure

Type: R
Description: Wasatch Fault, Uinta Arch


Alterations

Not available


Rocks

Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Plutonic Rock
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic


Analytical Data

Analytical Data: GRAB SAMPLE FROM DUMP: AG-153 PPM, AU-.23 PPM, CU-150 PPM, MO-LESS THAN 1 PPM, PB-15350 PPM, ZN - 690 PPM.


Materials

Ore: Galena
Ore: Chalcopyrite
Ore: Malachite


Comments

Comment (Location): LOCATION IS TO LOWEST ADIT OF GROUP ; INFO FROM LAND.ST :1977

Comment (Deposit): MINERALIZATION ASSOCIATED WITH PORPHYRY DIKES, SHEAR, ZONES AND QUARTZ VEINS IN QUARTZITE AND TILLITE

Comment (Workings): NORTH ADIT - WATER FLOODED BUT ACCESSIBLE, AT LEAST 150 FEET LONG, EXPLORES QUARTZ VEIN ALONG FAULT IN QUARTZITE, TRENDS N 43 W; CENTRAL ADIT - 135 FEET LONG IN IRON STAINED, SHEARED QUARTZITE, NO SIGNIFICANT MINERALIZATION NOTED, ADIT TRENDS N 10 W; SOUTH ADIT - COLLAPSED BUT ABOUT 100 FEET LONG IN TILLITE WITH SOME PORPHYRITIC DIKE MATERIAL, NO SIGNIFICANT MINERALIZATION NOTED.

Comment (Deposit): THE LAST CHANCE CLAIM DISCUSSED ON P. 109 OF CALKINS AND BUTLER, 1943 DOES NOT BELONG TO THIS GROUP. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV


References

Reference (Deposit): CRITTENDEN, M.D., JR., 1965, GEOLOGY OF THE DROMEDARY PEAK QUADRANGLE, UTAH: USGS MAP GQ-378.

Reference (Deposit): CALKINS, F.C. AND BUTLER, B.S., 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA, UTAH: USGS PROF. PA. 201, 152 P.