Sunset Sky Over Norris Geyser Basin, Yellowstone National Park
Sunset Sky Over Norris Geyser Basin, Yellowstone National Park, Wyoming, United States.
Lightning Strikes Near Old Faithful, Yellowstone National Park
Lighting near a smoldering Old Faithful, Yellowstone National Park, Wyoming, United States.
White Cone Geyser
White Cone Geyser, Yellowstone National Park, Wyoming, USA.
Dead Snag at Mammoth Hot Springs
Dead Snag at Mammoth Hot Springs, Wyoming, United States.
Mommoth Geysers, Yellowstone National Park
Blowing steam from a nearby geyser and resulting damage to foliage, Yellowstone National Park, Wyoming, USA.
Springs which were active one to five years ago may be dry and lifeless now, yet activity may later resume. Along with changes of thermal activity come changes in color. Fresh travertine is bright white in color and as it weathers it changes to gray. Bright colored cyanobacteria and algae mats which were dependent upon a stable temperature and a flow of water also change as the microorganisms die creating a stark, bleak landscape.Yellowstone National Park, Wyoming, USA.
Warm and cool colors juxtaposed at Grand Prismatic Spring, Yellowstone National Park, Wyoming, USA.
Sunset light warms clouds over geysers near Old Faithful, Yellowstone National Park, Wyoming, USA.
Lower Yellowstone Fall, Yellowstone National Park, Wyoming, USA.
Night eruption by Old Faithful, Yellowstone National Park, Wyoming, USA.
Minerva Terrace at Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA.
A mountain of mineral deposits, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA.
Old Faithful erupts against a stormy night sky, Yellowstone National Park, Wyoming, USA.
Late in the day at Norris Geyser Basin, Yellowstone National Park, Wyoming, USA.
Orange Mound Spring is an active hot spring leaving a warm colored mineral deposit, Yellowstone National Park, Wyoming, USA.
A snag and steam from geysers against dusk sky, Yellowstone National Park, Wyoming, USA.
A rising sun through geyser steam, Yellowstone National Park, Wyoming, USA.
A boardwalk leads visitors to Grand Prismatic Spring, Yellowstone National Park, Wyoming, USA.
Pine bows under travertine (calcium carbonate) result in artful display, Mammoth Hot Spring, Yellowstone National Park, Wyoming, USA.
Travestine deposits from super-heated geyser, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA.
Yellowstone River and Lower Yellowstone Fall, Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming, USA.
Visitors watch from a viewing platform next to Lower Yellowstone Falls, Yellowstone National Park, Wyoming, USA.
Lower Yellowstone Fall drops 308 feet into the Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming, USA.
White Cone Geyser, Yellowstone National Park.
