West Thumb Geyser Basin - 6
Thermal feature
The pools of West Thumb feature bright colors such as green, brown, orange and yellow, created by heat-loving organisms that live in the pools.

West Thumb Geyser Basin
West Thumb Geyser Basin Pictures - Page 1 2 3 4 5 6 7 8 9 10 11 12

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Yellowstone Vacation

Yellowstone Lake
West Thumb Geyser Basin
Central Basin
West Thumb Trail
Black Pool
South Entrance
Lewis River
Yellowstone Vacation: Lewis Lake
Yellowstone Vacation: Abyss Pool
Yellowstone Vacation: Big Cone
Fishing Cone
Lakeshore Geyser
Lakeside Spring
Bluebell Pools
Thumb Paint Pots
Moose Falls
Famous Geysers of Yellowstone
Yellowstone Lodging
Yellowstone Vacation Tips
Yellowstone Weather