Yellowstone National Park is unique on the earth: the whole park is a "caldera", a volcanic crater, with molten rock a mere three miles below the surface. Yellowstone has the largest and most diverse set of "geothermal features" on earth: geysers, hot springs, travertine terraces, mudholes, fumaroles...
But Yellowstone also has much more.
Top things to do include amazing opportunities for wildlife viewing (moose, elks, bison, bear, wolves); historic inns; scenic Grand Canyon of the Yellowstone.... Click below for top things to do in Yellowstone National Park.
- Continue to Old Faithful Geyser, or mouseover the boxes for more options.