Devil's Thumb and Palette Spring, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

travel destination travel destinations travel photography colour image colour color image color horizontal devil's thumb palette spring mammoth hot springs yellowstone national park unesco world heritage site unesco world heritage sites unesco world heritage site world heritage sites wyoming usa us united states usa us united states united states of america north america american north american outdoors outside day no people nobody no one no one landscape landscapes scenics scenery scenic scene scenes nature the natural world physical geography topography topography national park international landmark landmarks non urban scene rock limestone terrace steam heat