Yellowstone NP Wyoming

SulphurCaldron_DSC8066

Sulphur rich gasses fill the Caldron with sulfuric acid creating one of the worst odors you can imagine so it's definitely not a place you stay at very long

Sulphur rich gasses fill the Caldron with sulfuric acid creating one of the worst odors you can imagine so it’s definitely not a place you stay at very long

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