Brutus2005,
I might be mistaken but I believe this location was part of what became a 50/50 JV with NOT. PRB drilled this in 2008 before the JV and found ultamafics and anomalous platinum and palladium. It is now 100% owned by NOT after PRB reaquired the chromite .The claim group further west of this is in part 100% PRB but was only aquired later.
MH