Mammoth Hot Springs is a large complex of hot springs on a hill of travertine in Yellowstone National Park.
Orange Mound Spring is a stunning hot spring located within Yellowstone National Park.
Steamboat Geyser, located in Norris Geyser Basin, is the world's tallest currently-active geyser.
Echinus Geyser is one of the most acidic geysers in Yellowstone National Park.
Emerald Spring is a stunning hot spring located in Yellowstone National Park.
Beryl Spring is a boiling hot spring situated in Yellowstone National Park.
Sulphur Spring is a notable hot spring located in Park County.