West Thumb Pools (1991)
Some of the small pools in the West Thumb Geyser Basin of Yellowstone National Park, Wyoming. Yellowstone Lake is in the background. The lake’s shape vaguely resembles a hand; West Thumb is, as you might expect, on the thumb.
West Thumb Pools (1991)
Some of the small pools in the West Thumb Geyser Basin of Yellowstone National Park, Wyoming. Yellowstone Lake is in the background. The lake’s shape vaguely resembles a hand; West Thumb is, as you might expect, on the thumb.