Wyoming may be the least populous U.S. state but it is one of the most frequently visited. Spouting geysers, bubbling mudpots, multicolored hot springs. Pronghorn, grizzly bear, buffalo. Craggy mountains, open prairies, a supervolcano. Lodgepole pine, sagebrush, quaking aspen. Cowboys, wild west, rodeo. Frontier days, pioneers, wagon trails. Native Americans, powwows, reservations. Fossils, dig sites, dinosaurs. And there are lots of great lodges and good restaurants. What's more, kids are welcome everywhere and many of the activities are geared to families. So what's the catch? Getting around requires time and a car.