You've got the tent tied to the roof of the van, the kids strapped into the backseat, and you've hit the highway. Where's the campsite? You know it's somewhere in the state of Wyoming, but all you have to go on is a highway map and a beautiful photograph. Let's see—there's a campfire pit, some pine trees, and a nondescript mountain in the distance. Any minute now, the kids will start screaming.