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 3,500 square miles seep slightly across state borders into Montana and Idaho, but its major attractions are contained in the northwest corner of Wyoming.

so you'll want to use an official Yellowstone map (available online or at the park's five visitor centers) or specific GPS coordinates that the NPS provides to Yellowstone visitors.

On March 1, 1872, President Ulysses S. Grant signed the bill creating Yellowstone Park, the first national park in the history of the world. Despite the fact that the new national park comprised ...