1.(2030m~6660ft, 0km~0mi) START-END WEST: jct US20 - Mo87, north of Island Park, south of Henry's Lake
2.(2156m~7072ft, 6.4km~4.0mi) TOP: Targhee Pass
3.(2033m~6670ft, 9.8km~6.1mi) Denny Creek Road diverts on left
4.(2008m~6588ft, 12.0km~7.5mi) low point
5.(2033m~6670ft, 21.4km~13.3mi) START-END EAST: West Yellowstone, US20 turns north