Littlemo, that is the route that I'm looking at, sounds like an awesome drive up the valley. Although my wife is lobbying to run up north through Sheridan because she wants to see the Little Bighorn battlefield. If we do that then we'll drop into West Yellowstone from the north which adds about 150 miles to the trip. We've got time to get that figured out between now and then. We won't be bringing the dogs on this trip, we'll have a family member look after them. Just out of curiosity, once we top Togwanee pass, what kind of a downhill grade are we looking at toward the Tetons?