In Dances With Wolves, Lt. John Dunbar requests a posting on "the frontier" because he "wants to see the frontier before it's gone." It's not too difficult to put Yellowstone National Park, between the months of December and April, as being on the last frontier of the Lower 48.While it would be relatively easy to maintain wheeled-access to Old Faithful year-round, with apparently few environmental consequences, should we shrink what little "frontier" we have left in the National Park System?