Norris Geyser Basin

Norris Geyser Basin lies far below the towering peaks of the Gallatin Mountains, where water accumulates underground, is heated by the Yellowstone Volcano, and rises to erupt from acidic geysers, steaming fumaroles, and shimmering pools. Near the Yellowstone Caldera, the basin reflects a volcanic system that remains active today and is tied to a colossal eruption about 640,000 years ago. Two loop trails pass through this changing thermal landscape: Back Basin Trail winds through wooded areas and passes Steamboat Geyser, known for the world's highest but unpredictable eruptions, and Porkchop Geyser, the site of a small hydrothermal explosion, while Porcelain Basin Trail offers panoramic views and leads through small geysers, boiling springs, and colorful thermophiles.

Wyoming · United States