Sherman Ranch Occurrence

The Sherman Ranch Occurrence is a chromium mine located in Nevada county, California at an elevation of 2,402 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: Sherman Ranch Occurrence
Secondary: Hoeft Lease 1918

Commodity

Primary: Chromium

Location

State: California
County: Nevada
District: Nevada City - Grass Valley Area

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

Not available

Ownership

Owner Name: Eleanor E. Hoeft
Years: 1918 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
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

Not available

Materials

Ore: Chromite

Comments

Comment (Production): APPROX. 500 OR 600 TONS OF MINE-RUN DISSEMINATED ORE CONTAINING 10 TO 15 PERCENT CR2O3 WAS TAKEN TO MILL TO BE CONCENTRATED. THE CONCENTRATES CONTAINED ONLY ABOUT 32 PERCENT CR2O3 AND HAD A HIGH IRON CONTENT. MISS HOEFT REPORTED THAT 146 LONG TONS OF ORE WAS SHIPPED BY HER IN 1918.

Comment (Workings): INCLINED SHAFT 47 FT., DRIFT FROM THE BOTTOM OF THE SHAFT; SMALL STOPE.

Comment (Deposit): THE SHAFT ENCOUNTERED ORE, 12 FT. THICK AT PLACES, MOST OF THE WAY TO THE BOTTOM; THE DRIFT WAS IN ORE AS MUCH AS 10 FT. THICK FOR AT LEAST 30 FT. FROM THE BOTTOM OF THE SHAFT. SOME SHIPPING-GRADE ORE (FLOAT?) WAS SLUICED OFF THE HILLSIDE AND A SMALL LENS OF DISSEMINATED ORE WAS MINED FROM LOWER SLOPE; MAJOR BODY OF ORE WAS NEAR TOP OF THE RIDGE.

References

Reference (Deposit): D.O.M. BULL. 134, PT. III, CHAP. 5, P. 241, PL. 13

Reference (Deposit): CALIF. JOUR. MINES & GEOLOGY, V. 37, NO. 3, JULY 1941, P. 453

California Gold

"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.