"Hot spring, limestone sinter, Doublet Pool, Geyser Hill, Upper Geyser Basin, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"

"Hot spring with green water, Abyss Pool, West Thumb Geyser Basin, Yellowstone National Park, Wyoming, Western United States, United States of America, North America"

"Hot spring, water fountain, eruption, geyser, Sawmill Geyser, Castle-Grand Area, Upper Geyser Basin, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"

"Hot spring with a cone geyser, steam column, water vapor, Castle Geyser, Castle-Grand Area, Upper Geyser Basin, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"

"Hot spring, clear water, Perforated Pool, West Thumb, Yellowstone Lake in the background, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"

Coyote (Canis latrans), Geyser behind, Yellowstone National Park, Wyoming, USA, North America

"Tortoise Shell Spring, Yellowstone National Park, Wyoming, United States, North America"

"Porcelain Springs, Norris Geyser Basin, Yellowstone National Park, Wyoming, USA"

"Black Growler Steam Vent, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, Wyoming, USA"

Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America

Grand Prismatic Spring, Midway Geyser Basin, Yellowstone-Nationalpark, Wyoming, USA, Nordamerika

Lobby of Old Faithful Inn Hotel, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States, North America

"Trail Springs, Main Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA"

"Living Color sinter terraces, coloured by thermophilic bacteria, Lower Terraces Area, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA"

Hot springs in Yellowstone National Park, America, historical engraving, circa 1885

"Geyser, hot spring, steam, Clepsydra Geyser, Lower Geyser Basin, Yellowstone National Park, Wyoming, USA, United States of America, North America"