Robie

The Robie is a mine located in Mariposa county, California.

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: Robie  

State:  California

County:  Mariposa

Elevation:

Commodity:

Lat, Long: 37.7025, -120.27889

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 Robie

Robie MRDS details

Site Name

Primary: Robie


Commodity

Tertiary: Manganese


Location

State: California
County: Mariposa


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Owner Name: John L. Robie
Years: 1942 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant: N


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Analytical Data: ORE GRADE 30 PERCENT MANGANESE


Materials

Ore: Psilomelane


Comments

Comment (Workings): ONE SHALLOW PIT WAS THE ONLY WORKING IN 1942.

Comment (Geology): GEOL.DESC: MASSIVE TO THICK BEDDED WHITE CHERT PENETRATED BY BANDS AND STRINGERS OF PSILOMELANE. CHERT STRIKES N. 10 W., DIPPING CLOSE TO VERTICAL AND IS PART OF THE AMADOR GROUP, THE HUNTER VALLEY CHERT.


References

Reference (Deposit): CALIF. JOUR. MINES & GEOLOGY, V. 53, NOS. 1 & 2, JAN. - APRIL, 1957, P. 326

Reference (Deposit): DOM BULL. 152, 1950, P. 110


California Gold

Where to Find Gold in California

"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.