The array of colors at Mammoth Hot Springs, Yellowstone National Park
Views of the Yellowstone River from Canyon Lookout Point
Sunlight hits mist from Lower Yellowstone Falls, creating a rainbow, viewed from Red Rock Point.
Lower Yellowstone Falls from Artist Point
The Grand Canyon of the Yellowstone and the Yellowstone River from the Point Sublime Trail.
Colors in the Grand Canyon of the Yellowstone
The Yellowstone River and the Grand Canyon of the Yellowstone from the Point Sublime Trail
Sulphur Cauldron along the Yellowstone River, near Mud Volcano
A spring at Mud Volcano in Yellowstone National Park
Mud Volcano in Yellowstone National Park
Dragon Mouth Spring at Mud Volcano.
Small springs in West Thumb Geyser Basin
Cones in the West Thumb Geyser Basin and Yellowstone Lake
"Fishing Cone" at West Thumb Geyser Basin and Yellowstone Lake.
Geothermal features in the West Thumb Geyser Basin.
The misleading colors of Black Pool at West Thumb Geyser Basin.
The Abyss Pool at West Thumb Geyser Basin
