The Alta Hill Mine is a chromium mine located in Nevada county, California at an elevation of 2,598 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
Elevation: 2,598 Feet (792 Meters)
Commodity: Chromium
Lat, Long: 39.23472, -121.06500
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.
Alta Hill Mine MRDS details
Site Name
Primary: Alta Hill Mine
Commodity
Primary: Chromium
Location
State: California
County: Nevada
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: W. V. Mau, O. R. Heidrick, L. W. Williams
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 (Location): MINE LOCATED ON N SIDE OF ROAD BETWEEN GRASS VALLEY AND NEVADA CITY, CA.
Comment (Production): A STATE REPORT INDICATED ABOUT 250 TONS OF MILLING-GRADE ORE CONTAINING 15 TO 18 PERCENT CR2O3 PRODUCED WITH ABOUT 150 TONS SHIPPED IN 1918. WILLIAMS REPORTED SHIPMENTS OF ONLY 117 LONG TONS AND STOCKS OF 61 TONS IN 1918. IN 1937 WILLIAMS SOLD ABOUT 60 LONG TONS.
Comment (Workings): TWO GROUPS OF WORKINGS ABOUT 100 FT. APART, CONSISTING OF SOME OPEN CUTS AND TWO SHAFTS, 20 FT. AND 30 FT. WITH DRIFT OF ABOUT 50 FT.
Comment (Deposit): SOME OF THE ORE SHIPPED CONTAINED 31 TO 36 PERCENT CR2O3. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): D.O.M. BULL. 134, PT. III, CHAP. 5, P. 244, PL. 13
Reference (Deposit): CALIF. JOUR. MINES & GEOLOGY, V. 37, NO. 3, JULY 1941, P. 444
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.
