USA, United States, America, Wyoming, Rockies, Rocky Mountains, Yellowstone, National Park, UNESCO, World Heritage, Castle geyser

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Photo credit: © Heeb Christian / Alamy / Afripics
License: Licensed
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Keywords: america, basin, castle, geyser, heritage, hot, landscape, mountains, national, night, park, rockies, rocky, spring, states, unesco, united, upper, usa, volcanic, world, wyoming, yellowstone