Sunday, January 15, 2012

[Daily Photo] Abyss Pool in West Thumb Geyser Basin, Yellowstone

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This is the Abyss Pool in West Thumb Geyser Basin of Yellowstone National Park. For the hot springs of Yellowstone, you can judge their temperature difference from the colors because different colors of bacteria grow at different temperature levels of the water. Therefore, in this photo you can find blue color in the center of the pool. The color changes from blue to green to yellow when it is close to the fringe of the pool.

Emerald Pool in Black Sand Basin, Yellowstone National Park

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