"Hot spring, boiling water, steam, Crested Pool, Castle-Grand Area, Upper Geyser Basin, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"

"Hot spring, eruption, geyser, water fountain, steam against a blue sky, Old Faithful, 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, blue water, water vapor, Sappire Pool with a sign, Biscuit Basin, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"

"Geomorphology, limestone sinter terraces, dead trees, Canary Spring, Main Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, United States of America, North America"

"Geomorphology, white and yellow limestone sinter terraces, Palette Spring, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, United States of America, North America"

"Hot spring, clear water, Abyss Pool, West Thumb, in front of Yellowstone Lake, Yellowstone National Park, Wyoming, USA"

"Lone Star Geyser, Yellowstone National Park, Wyoming, United States, North America"

"Lone Star Geyser, Yellowstone National Park, Wyoming, United States, North America"

"Morning Glory Pool, Yellowstone National Park, Wyoming, United States, North America"

"Palette Spring sinter terrace of the Lower Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Palette Spring sinter terrace of the Lower Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Bison crossing the sinter crust of Grand Prismatic Spring, Yellowstone National Park, Wyoming, United States, North America"

"Bison crossing the sinter crust of Grand Prismatic Spring, Yellowstone National Park, Wyoming, United States, North America"

"Tourists watching the eruption of Riverside Geyser, Yellowstone National Park, Wyoming, United States, North America"

"Sinter terraces of the Lower Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Steam rises above the hot springs, Firehole Lake Drive, Yellowstone National Park, Wyoming, United States, North America"

"Sinter terraces of the Lower Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Sinter terraces of the Lower Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Colourful hot spring, Chromatic Spring, Upper Geyser Basin, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"