"Splendid Geyser, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States, North America"

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

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

"Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming, United States, North America"

"Sandhill Cranes (Grus canadensis), Beaver Ponds Trail, Yellowstone National Park, Wyoming, United States, North America"

"Bathing site of Boiling River, Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Grizzly (Ursus arctos horribilis), female with two cubs, 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"

"Tourists standing on the edge of Grand Prismatic Spring, 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"

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

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

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

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

"Limestone sinter terraces, hot springs, Terrace Mountain at Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Herd of American Bison (Bison bison) at Yellowstone River, Yellowstone National Park, Wyoming, USA, United States of America, North America"

"Starry sky over mountains, Yosemite National Park, California, United States, North America"

"Limestone sinter terraces, hot springs, dead trees, Terrace Mountain at Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"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"

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

"Minerva Terrace, Lower Terraces, limestone sinter terraces, hot springs, Terrace Mountain at Mammoth Hot Springs, Yellowstone National Park, Wyoming, United States, North America"

"Hot spring, dwindling eruption, geyser, steam against a blue sky, Old Faithful, Upper Geyser Basin, Yellowstone National Park, Wyoming, Western United States, USA, United States of America, North America"

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

Vacation in Yellowstone 2004 Linda Braucht (20th C. American) Computer graphics

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