just to clarify here, the Woodland Bison that jasonhernandez74 is talking about is different from the Wood bison that you’re talking about. as he noted, the Woodland Bison was just an ecologically separate population of Plains Bison. (genetically, they would be more or less the same subspecies.)
presumably, that would mean that you could transport some Plains Bison into wooded mountains, and they would be able to survive, but these kinds of things don’t always work as you would expect.