Brush up on your knowledge of Yellowstone's geography with this interactive version of National Geographic's Trails Illustrated map Yellowstone National Park MapPlanning a Yellowstone trip?

Yellowstone National Park's nearly ... be accessed directly from one of the park's entrances; instead, visitors will have to travel along the Grand Loop Road to reach this area.

Yellowstone’s popularity overshadowed a relatively unknown Oklahoma national park. With so much competition, the park no longer exists.

Forget the summer crowds, exploring wide-open landscapes by ski, snowmobile or snowshoe, and revel in a solitude that few ...