"A dormant hot spring" Mammoth Hot Springs Tip by annk
Mammoth Hot Springs, Yellowstone National Park: 74 reviews and 162 photos
Named Liberty Cap due to its resemblance to the peaked knit caps worn during the French Revolution, this dormant spring is estimated to be 2500 years old. The formation is mineral deposits slowly built up for many years.
Directions: Mammoth Hot Springs area.
Right before the lower terraces if walking from the village. You can't miss it.
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