Oregon · Josephine County
Past Producer
Tennessee Pass
Josephine County, Oregon, United States
Chromium Platinum Palladium Iridium Ruthenium Rhodium
Land & claims · BLM · live
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Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.
Commodities
PrimaryChromium
SecondaryPlatinum
TertiaryPalladium, Iridium, Ruthenium, Rhodium
Commodity typeMetallic
Deposit
Model15: Podiform chromite (minor)
Deposit sizeSmall
Orebody formLENS
Ore controlMagmatic Segregation
Materials
Ore mineralsChromite
GangueOlivine, Serpentine
Geology
Host rockSerpentinite · Pearsoll Peak Ophiolite
Associated rockPeridotite · Pearsoll Peak Ophiolite
StructureSerpentine Is Contorted
Tectonic settingKlamath Mountains Accreted Terrane
Economic & production
Development statusPast Producer
Discovery year1918
Community notes
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References
RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 155-156.THAYER, T.P., 1974, U.S. GEOLOGICAL SURVEY, UNPUB. DATA.PAGE, N.J, JOHNSON, M.G., HAFFTY, JOSEPH, AND RAMP, LEN, 1975, OCCURRENCE OF PLATINUM GROUP METALS IN ULTRAMAFIC ROCKS OF THE MEDFORD-COOS BAY 2 DEGREE QUADRANGLE, SOUTHWESTERN OREGON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-694, SCALE 1:250,000.RAMP, LEN, AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 100, TABLE 1.CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.
Identification
Deposit ID10098505
MRDS IDM060629
Alternate namesK #130
RegionNA
Data scoreB
Coordinates42.19288, -123.70616
Base: USGS MRDS (public domain, frozen 2011). Community notes © their authors, CC-BY. Land data live from BLM.