CloudDriver, thanks for the route. I'll map it out and see how that works for us. Lots of good info.
Tow Hands, I don't want to try to do too much in one trip. Leaving Yellowstone guarantees a return trip and exploring Yellowstone, Idaho, Washington and Oregon, which will be the last few states to complete the US states I've visited with the exception of Alaska (a trip all on its own). I'm afraid if I do Yellowstone, I'll probably never get to those other states. It won't be easy fighting the temptation though :)
