The Koon Ranch is a gold mine located in Trinity county, California at an elevation of 479 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: 479 Feet (146 Meters)
Commodity: Gold
Lat, Long: 40.88, -123.60500
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.
Koon Ranch MRDS details
Site Name
Primary: Koon Ranch
Secondary: South Fork Trinity River
Commodity
Primary: Gold
Secondary: Platinum
Tertiary: Copper
Tertiary: Osmium
Tertiary: Iridium
Tertiary: Iron
Tertiary: Rhodium
Tertiary: Nickel
Tertiary: Palladium
Tertiary: Ruthenium
Location
State: California
County: Trinity
District: Trinity River (South Fork) Area
Land Status
Land ownership: National Forest
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
Type: Surface
Ownership
Owner Name: J. A. Koon
Years: 1917 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Stream Placer
Operation Type: Placer
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Klamath Mountains
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Form: STREAM SEDIMENT DEPOSITS
Structure
Not available
Alterations
Not available
Rocks
Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene
Analytical Data
Not available
Materials
Ore: Gold
Ore: Platinum
Ore: Iridosmine
Comments
Comment (Commodity): AU AND PGE FINE AND FLAKY. SNETSINGER GIVES LOCALITY OF PT NUGGET AS STREAM GRAVELS FROM SOUTH FORK OF TRINITY RIVER. IRIDOSMINE IDENTIFIED BY ELECTRON MICROPROBE
Comment (Location): IN SIX RIVERS NATIONAL FOREST. ON SOUTH FORK TRINITY RIVER. LOCATION GIVEN IS FOR 1 MILE MARKER SHOWN ON TOPO MAP
Comment (Production): PLATINUM GRADE DOES NOT SEEM REASONABLE (J PETERSON, 02/92)
Comment (Workings): HYDRAULIC
Comment (Geology): SLATE BEDROCK
Comment (Location): Used PLS and GIS to determine lat/long. Property is about 2 miles above mouth of South Fork of Trinity River. The river is the border between two counties, and this is in the river and bank.
References
Reference (Deposit): SNETSINGER, K.G., 1971, A PLATINUM-METAL NUGGET FROM TRINITY COUNTY, CALIFORNIA: AMERICAN MINERALOGIST, V. 56, NO. 5-6, P. 1101-1105.
Reference (Deposit): LOGAN, C.A., 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA STATE MINING BUREAU BULLETIN 85, P. 88.
Reference (Deposit): CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 143-144.
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.
