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?

The canyon is anywhere from 800 to 1,200 feet deep and features multiple falls that cascade down the Yellowstone River, including ... there are several hiking trails. From the top-ranked and ...

Yellowstone National Park ... the Lone Star Geyser trail is an easy 5-mile round trip hike that follows the Firehole River.