Old Faithful, Yellowstone National Park, WY, geyser, Wyoming, A crowd of people watching Old Faithful erupt in Yellowstone Nat'l Park in Wyoming.

Yellowstone National Park, WY, geyser, Wyoming, Old Faithful, A crowd of people watching Old Faithful erupt in Yellowstone Nat'l Park in Wyoming.

Yellowstone National Park, Old Faithful, WY, geyser, Wyoming, A crowd of people watching Old Faithful erupt in Yellowstone Nat'l Park in Wyoming.

Yellowstone National Park, Mammoth Hot Springs, WY, Wyoming, Woman standing on boardwalk looking at Minerva Spring at Mammoth Hot Springs in Yellowstone Nat'l Park in Wyoming.

stage coach, Yellowstone National Park, WY, Tower Junction, Wyoming, Stage Coach Ride at Tower-Roosevelt in Yellowstone Nat'l Park in Wyoming.

Yellowstone National Park, WY, Wyoming, Woman sitting on the boardwalk and reading next to Fishing Cone on Yellowstone Lake at West Thumb Geyser Basin in Yellowstone Nat'l Park in Wyoming.

Yellowstone National Park, Old Faithful, Wyoming, Yellostone, Tourists gather to watch The Old Faithful Geyser erupt in Yellowstone National Park in the state of Wyoming.

Old Faithful, Yellowstone National Park, geyser, amish, Wyoming, Yellowstone, A group of Amish sit on benches waiting to watch The Old Faithful Geyser erupt in Yellowstone National Park in the state of Wyoming.

marmots, Yellowstone National Park, WY, Wyoming, Woman feeding marmots near Old Faithful in Yellowstone Nat'l Park in Wyoming.