 Old Faithful spouting water and steam up 130 feet, with a rainbow |
 Old Faithful at the peak of the eruption |
 A Geezer and a Geyser |
 Bull Bison grazing near the Geyser Basin at Old Faithful |
 Viewing Old Faithful eruption from the veranda at the Inn |
 Waiting for Old Faithful's next "show" |
 Old Faithful Inn |
 The Roosevelt Arch at the North Entrance to the Park |
 Mammoth Hot Springs |
 Terraced pools at Mammoth Hot Springs |
 Mammoth Hot Springs |
 Mammoth Hot Springs |
 Mammoth Hot Springs |
 Mammoth Hot Springs |
 It's a long climb up 280 stairs to the top of the Springs |
 Mammoth Hot Springs |
 "Liberty Cap" dormant hot spring cone |
 Grazing Elks in Mammoth Village |
 Bison Bull grazing on the sweet grass in Mammoth Village |
 Bison Bull grazing on the sweet grass in Mammoth Village |
 Mammoth Village, Yellowstone Park Headquarters |
 Bison females with calves |
 Bison calf |
 Black Bear by the road in Yellowstone |
 Red Fox hunting by the road |
 Big Horn Sheep resting in the shade |
 Big Horn Sheep |
 Mule Deer |
 Boulders from the last eruption |
 One of many Bison Herds |
 Protecting the young |
 The Yellowstone River exiting the 24-mile long Yellowstone Canyon |
 Bull Bison enjoying a cold drink |
 Mt. Washburn, 10,243 ft |
 Plenty of snow clinging to the hills in Dunraven Pass |
 A boiling thermal hot spring |
 Bison Herd |
 Bison Herd |
 Geysers and steam vents at the Old Faithful Geyser Basin |
 Steaming Hot Spring |
 Boiling Geyser near Old Faithful Inn |
 Geyser Basin near Old Faithful Inn |
 Geyser Basin, Old Faithful at far right |
 Thermal Hot Spring |
 "Buffalo Rub" - Bison scratching post |
 Boiling hot spring |
 Bacteria Mat in the runoff from the hot springs |
 Bacteria Mat in the runoff from the hot springs |
 Crystal clear thermal hot spring |
 Crystal clear thermal hot spring |
 Bubbling mud at Painter's Pot |
 Bubbling mud at Painter's Pot |
 Bubbling mud at Painter's Pot |
 Bubbling mud at Painter's Pot |
 Erupting red mud |
 Erupting red mud |
 Erupting red mud |
 Erupting red mud |
 Walking through the Geyser Field |
 "Bobby Sox" trees |
 The ridge along the Yellowstone Caldera |
 Bison at the Gibbon River |
 Nursing Bison Calf |
 Bison checking out the bus |
 Gibbon River |
 Gibbon Falls on the Caldera Rim |
 Gibbon Falls on the Caldera Rim |
 Bull Bison with winter coat |
 Boiling hot spring |
 Yellowstone's most talented scavenger - the Raven |
 Yellowstone Falls and Canyon |
 Yellowstone Falls and Canyon |
 Yellowstone Falls and Canyon |
 Yellowstone Falls and Canyon |
 The vivid colors in Yellowstone Canyon |
 Two "Grand Canyons" in one year - pretty good! |
 Yellowstone Lake |
 Yellowstone Lake |
 Yellowstone Lake |
 Pregnant Elk with radio collar on the shore of Yellowstone Lake |
 Snowing at the Continental Divede - May 27 |
 Frazier River |
 Frazier River Gorge |