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Especially striking for its complex series of ledges, elaborate border ornamentation, and deep blue waters, Doublet Pool is an attractive subject for photographers. Occasionally, Doublet produces periodic vibrations underfoot, surface wave motion, and audible thumping. This is most likely the result of collapsing gas and steam bubbles deep underground.
*Adapted from the NPS Old Faithful Area Trail Guide and the Old Faithful Area Interactive Map
Survey Date: October 5, 1998
Geographic Area: Firehole River Drainage
Thermal Region: Upper Geyser Basin
Thermal Complex: Geyser Hill Group
Ranger District Contact: Old Faithful District, Colleen Rawlings (307) 344-2701
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