Park visitors watch a twilight eruption of the Old Faithful geyser in Yellowstone National Park, Monday, May 30, 2005. (Kevin Moloney for the New York Times)

Park visitors watch a twilight eruption of the Old Faithful geyser in Yellowstone National Park, Monday, May 30, 2005. (Kevin Moloney for the New York Times)

Add to Cart Add to Lightbox Download

Filename: Yellowstone_01.jpg
Copyright: (c) Kevin Moloney, 2005
Image Size: 4288x2848 / 600.6KB; national park Yellowstone wildlife landscape environment travel vacation thermal steam geyser fumarole spring volcano volcanic Old Faithful
Contained in galleries: Wyoming

Park visitors watch a twilight eruption of the Old Faithful geyser in Yellowstone National Park, Monday, May 30, 2005. (Kevin Moloney for the New York Times)