We followed the Yellowstone River on I-94 then I-90 to Reed Point, a small town about 50 miles west of Billings.  We are in the foothills and are going to Butte tomorrow so we should reach the mountains.  We can see the Beartooth Range from here.  Travelled over 300 miles today and have no TV reception so it will be an early night.  It is 72 now but is supposed to drop to 42 tonight.