Agreed. They never planned on operating the 170s up there. To the previous poster, the max certificated take off altitude of the 170/175 is 8000. While the 190 is certified to operate at higher altitudes I seriously doubt they planned on operating them with the associated penalties up there. Either the new low ball dash 8 folks in Wyoming are stumbling a bit or else BB and company are rethinking their stance on turboprops. That could be a good thing. Gas prices will rise again. We're running out of the stuff despite what you hear on Fox News.