The Jim Bus is a chromium mine located in Josephine county, Oregon at an elevation of 961 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: 961 Feet (293 Meters)
Commodity: Chromium
Lat, Long: 42.34083, -123.77306
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.
Jim Bus MRDS details
Site Name
Primary: Jim Bus
Secondary: Illinois Chrome Mine
Secondary: Robbin
Commodity
Primary: Chromium
Location
State: Oregon
County: Josephine
District: Central Illinois River
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.
Administrative Organization: Siskiyou National Forest
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1943
Material type: ORE
Description: Ap_Grade: ^47. % Cr2o3
Deposit
Record Type: Site
Operation Category: 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: Klamath Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENS
Structure
Type: L
Description: Shear Zone - N75w, 77sw Dip
Alterations
Alteration Type: L
Alteration Text: Talc Increases Near Dike
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Analytical Data: 12.56% FE (HAD MORE TALC)
Analytical Data: 42.69% CR2O3
Analytical Data: 13% FE
Analytical Data: 48.87% CR2O3
Materials
Ore: Chromite
Gangue: Talc
Comments
Comment (Production): POSSIBLY MORE PRODUCTION IN 1950'S ATTRIBUTED TO DIFFERENT LESSEES.
Comment (Workings): SURFACE CUTS AND A 30 FOOT ADIT AND 50 FOOT SHAFT. POSSIBLY MORE PRODUCTION IN 1950'S ATTRIBUTED TO DIFFERENT LESSEES.
Comment (Deposit): RECORD NUMBER (M013638) HAS BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.
References
Reference (Deposit): THAYER, T. P., 1974, UNPUBL. DATA
Reference (Deposit): RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P
Reference (Deposit): RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPT. GEOLOGY AND MINERAL IND. BULL. 52, 169 P.
Oregon Gold
"Where to Find Gold in Oregon" 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 Oregon. Read more: Where to Find Gold in Oregon.
