Yellowstone - Lake Area / West Thumb
- by Steven King
- 2016-10-18
- 8 media
- 8 available
Yellowstone Lake resembles the shape of a human hand.
West Thumb is a caldera within a caldera.
Temperatures of these springs vary from less than 100ºF (38ºC) to just over 200ºF (93ºC).
-
One of the deeper hot springs in the park, Abyss Pool descends to 53 feet (16 meters).
Black Pool's temperature rose in 1991, turning the pool from black to a rich blue color.
T27A1550 Panorama.jpg
It's all thanks to the heat-loving bacteria that call the spring home.