The Mammoth Hoodoos are travertine limestone deposits left by ancient hot springs. They broke away from Terrace Mountain and came to lie in a jumbled heap that looks as if it were strewn about by giants.

0004 The Hoodoos

When you visit Yellowstone, you see Park Rangers from time to time and can ask them questions about the features and processes in the park. We decided our online visitors deserved a similar opportunity so we created these short videos to give you an online roving ranger experience.

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The artist that shaped this American treasure continues to work on this unique place today.

0028a Yellowstone's Grand Canyon in Winter

Visiting this frozen landscape is worth the planning and effort it takes to get here.

0023a Winter at Yellowstone Lake

Visitors traveling to and from the West Entrance are rewarded with some of the most beautiful scenery in the country.

0042w Winter Bird Watching

The wolverine is an elusive and fascinating animal you may never see.

0042v The Wolverine Study

Fall and spring seem to be the most dangerous seasons because people are not as prepared.

0004 The Hoodoos

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