Mammoth Hot Springs looks different than what I remember 10+ years ago, but the park ranger did say that it's always changing. Either way, it's still one of the most unique natural features I've ever set eyes upon.

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I think the last time I was here, this had steaming thermal water running down the terraces.

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This is one of my favorite pics from the area.

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It almost feels like we're on a different planet.

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I'll bring us back to Earth on the final Yellowstone post...coming later this week. =)