My family of 5 (my wife, 10 and 8 year old daughters and 6 year old son) are planning a trip to West Yellowstone Montana via I-15. We need some ideas on route info. Our plan of attack so far is drive from LA to Provo, UT (10 - 12 hr trip YIKES). Stay there for 2 nights and see the Dinosaur Museum which is nearby. Then head straight into West Yellowstone and stay for 6 days. Then on the way home we were going to stop at Salt Lake City for 2 nights then over to Hurricane Utah (near Zion NP) for another 2 nights. Then travel back home.
We are a little reluctant on the first 12 hour trip. We also aren't quite sure about any of the campgrounds we found yet. Having a real hard time finding good ones through the internet. Any ideas would be appreciated.