The Sweet Ranch Occurrence is a chromium mine located in Nevada 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.
Primary Mineral: Chromium
Lat, Long: 39.09, -121.09194
Map: View on Google Maps
Sweet Ranch Occurrence MRDS details
Primary: Sweet Ranch Occurrence
District: Wolf Creek Area
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 indicate a claim status and does not necessarily indicate an area is open to prospecting.
Owner Name: John Sweet
Owner Name: Edward Morgan, Henry Yue
Years: 1918 -
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1898
Years of Production:
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Comment (Production): A LITTLE ORE WAS MINED ABOUT 1898. PRODUCTION FIGURES SUBMITTED BY OWNER REPORTED YIELDS OF 82 LONG TONS IN 1916, 20 TONS IN 1917, 424 TONS IN 1918. LATTER FIGURE APPEARS RATHER HIGH UNLESS IT INCLUDES SOME ORE OF MILLING-GRADE AS INVESTIGATOR REPORTED THAT ONLY 300 TONS OF SHIPPING GRADE ORE HAD BEEN MINED AND NOT MUCH OF THAT GRADE WAS TO BE SEEN IN THE WORKINGS LATE IN 1918. ALTHOUGH THE DEPOSIT CONTAINED SEVERAL HUNDRED TONS OF MILLING-GRADE ORE, NEAREST CUSTOM MILL WAS AT TOO GREAT A DISTANCE FOR PROFITABLE HAULING.
Comment (Workings): OPEN CUT FROM 10 TO 15 FT. WIDE, 50 FT. LONG AND 40 FT. DEEP, DRIFT 20 FEET LONG INTO FACE OF CUT.
Reference (Deposit): D.O.M. BULL. 134, PT. III, CHAP. 5, P. 248-9; PL. 13