Fodor's Expert Review Devils Tower National Monument

As you drive east from Gillette, the highways begin to rise into the forested slopes of the Black Hills. A detour north will take you to Devils Tower. Geologists attribute the butte's strange existence to ancient volcanic activity. Rock climbers say it's one of the best crack-climbing areas on the continent. The tower was a tourist magnet long before a spaceship landed here in the movie Close Encounters of the Third Kind. Teddy Roosevelt made it the nation's first national monument in 1906, and it has attracted a steadily increasing throng of visitors ever since—up to nearly half a million people a year.

When you visit, take some time to stop at the visitor center. Exhibits here explain the geology, history, and cultural significance of the monument, and a bookstore carries a wide selection of materials relating to the park. Park rangers can provide updated information on hiking and climbing conditions. A short and easy walking path circles the tower.