so this is just a warning to aviod it at all costs. we spent the week in idaho and were coming back and had no clue about it till we came to the deture. well the deture goes north 21 miles then east 41 miles. then its like another 61 to missoula. so im thinkin this wont be that bad about five minutes into it was bumper to bumper cars and the averge speed was 5 mph. so it tourned a 4 hour drive into 10 hour drive.