Sylvan Pass Sylvan Pass Coyote Mule Deer Elk Bison Bull Grizzly Sow Wolf Yellowstone Lake Yellowstone Lake Yellowstone Lake Yellowstone Lake Yellowstone Lake West Thumb Geyser Basin West Thumb Geyser Basin West Thumb Geyser Basin West Thumb Geyser Basin Black Pool Painted Pools Abyss Pool West Thumb Geyser Basin West Thumb Geyser Basin West Thumb Geyser Basin Yellowstone Lake Yellowstone Lake Overlook Peak Yellowstone Lake Nez Perce Ford and Pelican Cone Sandhill Cranes Dragon's Mouth Spring Black Dragon's Cauldron Sour Lake Grizzly Fumarole Mud Volcano Mud Pots Mud Bison Bull Bison Bull Bison Sour Lake Black Dragon's Cauldron Mud Volcano Sour Lake Steam Bath Mud Volcano