The Missoulian reports that the U.S. Forest Service has expressed concerns to transportation departments in both Idaho and Montana about the megaloads of oil equipment proposed for U.S. Highway 12, saying they could conflict with its ability to "preserve, protect and manage the cultural and historical values associated with the corridor." Northern Region Forester Leslie Weldon said the issue is of special concern "should frequent transport of significantly oversized loads become the norm for these forest highways." You can read the Missoulian article here.