The Sonoma Chrome, Inc. Deposit is a chromium mine located in Sonoma 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
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.
Sonoma Chrome, Inc. Deposit MRDS details
Site Name
Primary: Sonoma Chrome, Inc. Deposit
Secondary: Camp Meeker
Secondary: Meeker Chrome Mine
Commodity
Primary: Chromium
Location
State: California
County: Sonoma
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: Neuman, Bentley
Home Office: Santa Clara, Ca.
Years: 1942 -
Owner Name: Meeker Estate, M. C.
Home Office: Camp Meeker, Ca.
Years: 1918 -
Production
Year: 1918
Material type: ORE CR
Description: Ap_Grade: ^39-42% Chromite
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Physiographic Detail: Bohemian Grove
Mineral Deposit Model
Not available
Orebody
Form: LENSE, POD
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: LOW GRADE ORE RANGES 15-20% CR2O3.
Analytical Data: HIGH GRADE ORE RANGES 42 TO 51% CR2O3 WITH CR/FE OF 3:1
Materials
Ore: Chromite
Comments
Comment (Deposit): CHROMITE DEPOSITS ALINED IN 3 MIAN ORE-BEARING ZONES, WHICH STRIKE N40W. IN 1942, LOWGRADE ORE WAS EXPOSED TO A DEPTH OF 4 FT. OVER TWO AREAS APPROX. 100 FT. BY 50 FT. EACH, APPROX. 3/4 MILE APART FROM EACH OTHER. THIRD ORE BODY A SINGLE LENSE 60 FT. DEEP.
Comment (Workings): PRINCIPAL WORKING WAS AN OPEN CUT 125 FT. LONG BY 20 FT. DEEP, IN WHICH A 55 FT SHAFT WAS SUNK AT THE LOWER END. FROM THE SHAFT, A DRIFT HAD BEEN DRIVEN 40 FT IN ORE, ALONG STRIKE BACK UNDER THE CUT. OTHER WORKINGS INCLUDED PITS LESS THAN 10 FT. DEEP.
Comment (Development): B. NEWMAN LEASED 2000 ACRES OF THE MEEKER RANCH IN 1942 IN ORDER TO CLEAN OUT OLD CHROMITE WORKINGS AND DEVELOP LOW GRADE ORE.
References
Reference (Deposit): LOGAN, C.A., 1918, CHROMIUM, IN BRADLEY, W.W., AND OTHERS, MANGANESE AND CHROMIUM IN CALIF.: CALIF. STATE MINING BUREAU BULLETIN NO. 76, P. 201.
Reference (Deposit): DOW, D.H. AND THAYER, T.P., 1946, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIF.: CALIF. DIVISION OF MINES BULLETIN 134 PART 2, CHAPT. 1, P. 28,36.
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.
