Stop off at Mammoth Hot Springs to see the Travertine Terraces. Created with water and limestone a must stop when you are visiting Yellowstone Park.
What are Fumaroles?
Fumaroles are the hottest hydrathermal active sites in Yellowstone Park. Because of this heat they do not spay up water like geysers but shoot up steam. You can hear the fumaroles hiss and whistle as the stream tries to escape through a restricted passage to the surface.
What are the mudpots in Yellowstone Park?
The best places to see mudpots in Yellowstone Park are: Artists’ Paintpots, Norris Geyser Basin, Fountain Paint Pots, West Thumb Geyser Basin and Mud Volcano. Mudpots are acidic hot springs. They differ from hotsprings due to the fact they have a limited water supply. With the water levels being low, acid decomposes the rock around and forms mud and clay.