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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0004 The Hoodoos

0004 The Hoodoos

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