Thermal Features in Yellowstone National Park

When you think Yellowstone you think geysers, but there are a variety of other thermal features in the park. The hot springs and pools often are brilliantly colored by the various bacteria that live in the water.


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Emerald Pool

Date: August 23, 2010
Location: Black Sand Basin, Yellowstone National Park, WY

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Sunset Lake
A beautiful blue in the center, where it is deepest. The edges of the pool has a fringe of yellow and orange.
Date: August 23, 2010
Location: Black Sand Basin, Yellowstone National Park, WY

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Dragon's mouth spring
Water surges out of this cave and it makes a rumbling sound.
Date: August 27, 2010
Location: Mud Volcano, Yellowstone National Park, WY

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Blue Star spring

Date: August 23, 2010
Location: Upper Geyser Basin, Yellowstone National Park, WY

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Crested pool
Named because of the small crest of rock that rims the spring.
Date: August 25, 2010
Location: Upper Geyser Basin, Yellowstone National Park, WY

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Belgian Pool

Date: August 25, 2010
Location: Upper Geyser Basin, Yellowstone National Park, WY

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Beauty Pool

Date: August 25, 2010
Location: Upper Geyser Basin, Yellowstone National Park, WY

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Firehole river
The Firehole river passes right through Upper Geyser Basin and most of the runoff from the springs and geysers eventually makes it into this river.
Date: August 25, 2010
Location: Upper Geyser Basin, Yellowstone National Park, WY