Wyoming is famous for its geothermal activity, including iconic geysers and hot springs.

Wyoming is home to Yellowstone National Park, one of the most well-known geothermal areas in the world. Yellowstone features the famous Old Faithful geyser, which erupts regularly, and a variety of hot springs, mud pots, and fumaroles. The park sits atop the Yellowstone Caldera, a supervolcano responsible for the region's extensive geothermal features. These natural wonders attract millions of visitors each year who come to experience the unique geothermal landscapes, including colorful hot springs like the Grand Prismatic Spring, showcasing vivid hues from heat-loving microbes.