We're planning a road trip from central TX to the Seattle area - leaving early July, back about mid August. We're 2 adults, 1 teen, 1 sml dog and a very small popup camper - with air conditioner. We're very flexible regarding our route, though have a few definite NM destinations (Carlsbad Caverns, White Sands), followed by the North Rim of the Grand Canyon. Even though our daughter camps and enjoys nature, she's a typical teen, so I'd like to include fun activities along our route (such as sledding down White Sands). We're not experienced in whitewater, though a minimum difficulty/great beauty river daytrip is on the agenda as we head north. Any suggestions for teen-appreciated experiences are welcome (and I'll be posting to other state forums as well). No concrete water parks or shopping centers please! Thanks so much.