Chief of the Hills Group

The Chief of the Hills Group is a tin mine located in Riverside county, California at an elevation of 1,801 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: Chief of the Hills Group  

State:  California

County:  Riverside

Elevation: 1,801 Feet (549 Meters)

Commodity: Tin

Lat, Long: 33.67167, -117.29194

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 Chief of the Hills Group

Chief of the Hills Group MRDS details

Site Name

Primary: Chief of the Hills Group


Commodity

Primary: Tin


Location

State: California
County: Riverside


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Los Angeles Ranges


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic


Analytical Data

Analytical Data: REPORTED ASSAYS 0.30 , 2.21 AND 7.0 PERCENT TIN.


Materials

Gangue: Tourmaline


Comments

Comment (Location): LOCATED IN SECTION 3 AND NE 1/4 SECTION 4 , UTM APPROX

Comment (Deposit): A BELT OF SLATE, SCHIST, AND FELSITES FORMING A LENSE WITHIN GRANITE. 5 DIKES CUT THE BELT. WITHIN THE DIKES, FINE-GRAINED GRANITE IS REPLACED BY CRYPTOCRYSTALLINE TOURMALINE, REDDISH-BROWN CRYSTALS LINING CAVITITES IN THE TOURMALINE CONTAIN SN.

Comment (Workings): SHAFT SUNK 100 FT ON THE DIKES. AT BOTTOM CROSSCUT DRIVEN 20 FT EAST AND 10 FT WEST.

Comment (Geology): GEOL.DESC: COUNTRY ROCK IS TRIASSIC SANTA ANA (BEDFORD CANYON) SLATE, QUARTZITE AND METACONGLOMERATE. BEDS STRIKE N. 5 TO 20 W., DIP 80 E. COMB QUARTZ VEINS 2 TO 3 INCHES WIDE ON EDGE OF METACONGLOMERATE BODY, MUCH DISCOLORATION BY IRON, MANGANESE (?) OXIDES. TIN REPORTED TO OCCUR AS REDDISH BROWN CRYSTALS LINING CAVITIES IN MINUTELY CRYSTALLINE TOURMALINE ASSOCIATED WITH 5 FINE-GRAINED GRANITIC DIKES. 5 VEINS STRIKE N 30 W, DIP 80 E.


References

Reference (Deposit): CALIF. JOUR. M. AND G., VOL. 41 , NO. 3 , 1945 , P. 152

Reference (Deposit): D.O.M. BULL. 146 , 1959 , P. 126

Reference (Deposit): STATE MINERALOGISTS REPT. XXV, P. 496

Reference (Deposit): SAMPSON, R.J., AND TUCKER, W.B., 1945, MINERAL RESOURCES OF RIVERSIDE COUNTY; CALIFORNIA DIVISION OF MINES AND GEOLOGY, VOL. 41, NO. 3, P. 152.


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