This story appears in the August 2009 issue of National Geographic magazine. Update: Our new Yellowstone National Park stories may surprise you with pictures of Yellowstone's remarkable animals.

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

Yellowstone National Park’s two million acres of wilderness contain many stories, including one of the best case studies in wildlife conservation. Doug Smith led the project that reintroduced ...

More than 300 million visitors explored America’s national parks last year, from Acadia in Maine to Zion in Utah.

according to Nat Geo. Under Canvas is a "glamping" resort set in scenic Yellowstone National Park. Montana’s Crazy and Absaroka Mountains surround the resort, which is set in a valley that ...

The Yellowstone supervolcano last erupted 640,000 years ago, according to National Geographic, creating a caldera that ...