Yellowstone National Park Sights

West Thumb Geyser Basin

  • Grand Loop Rd. Map It
  • West Thumb
  • Geological Site

Published 01/19/2016

Fodor's Review

The primary Yellowstone caldera was created by one volcanic eruption, while West Thumb came about as the result of a later eruption. This unique geyser basin is the only place to see active geothermal features in Yellowstone Lake. Two boardwalk loops are offered; take the longer one to see features like Fishing Cone, where fishermen used to drop their freshly caught fish straight into boiling water without ever taking it off the hook. This area is particularly popular with winter visitors, who take advantage of the nearby warming hut and a stroll around the geyser basin before continuing their trip via snow coach or snowmobile.

Sight Information


Grand Loop Rd., 22 miles north of South Entrance, Yellowstone National Park, Wyoming, USA

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Published 01/19/2016


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