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West Thumb
Geyser Basin

General:

Ephedra Spring

Ephedra Spring is lined with dark brown algea and stands out against its lighter sand-colored surroundings.

Ephedra Spring, like many of the hot springs in the Central Basin of West Thumb, can vary dramatically in appearance depending on how hot or cool it is, and how much water it contains.


West Thumb Geyser Basin Tour

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Last Updated: Wednesday, 22-Dec-2004 10:11:42 Eastern Standard Time
http://www.nps.gov /archive/yell/tours/westthumb/ephedra.htm