Colourful Pool, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

travel destination photography colour image horizontal unesco world heritage site national park outdoors day 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 extreme terrain midway geyser basin green water geology rock steam thermal pool hot spring nature places of interest