Midway Geyser Basin, Yellowstone National Park, Wyoming, 7:10pm, July 18, 2005
Midway Geyser Basin, Yellowstone National Park, Wyoming, 7:10pm, July 18, 2005
Excelsior made this big crater in the 19th century. Although it was mostly quiet in the 20th century, it still has a huge outflow of water.