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?

If you want to view Yellowstone's geysers sans crowds ... you'll have to take an approximately 5-mile out-and-back dirt trail that's bike friendly. What makes this geyser a top attraction is ...

Of the more than 900 miles of trails available in Yellowstone National Park, Mystic Falls Trail is one of its most popular. The reason for this has to do with its scenery as well as the length.