Steam and turquoise depths at Black Pool, dawn, West Thumb Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

travel destination photography colour image vertical unesco world heritage site national park outdoors landscape scenics physical geography beauty in nature no people non urban scene united states of america north america yellowstone national park wyoming natural landmark dramatic landscape geyser west thumb geyser basin extreme terrain black pool dawn steam elevated view turquoise water thermal pool hot spring nature places of interest