Wolverines are actually very solitary animals, the only time they interact with each other is during mating or a here or there species encounter. I'm sure that the wolverines that you are speaking about from Mt. Hood are seasonal, for example they only come to that area during the summer or winter. A couple dozen wolverines is going to be very hard to find in any of the continental United States, wolverines are endangered and rare down here, even in Yellowstone where they are most likely most prominent they are not so many. But like the article I posted if a reintroduction were to occur in the Rocky Mountains the government would need to set aside land closed to most activities such as hunting for there conservation and they would probably only introduce 10 or 12 at the most, if that.