Hot water in pools on calcite terraces deposited by Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America

calcite usa us united states us rock formation daytime colour color americas american america yellowstone national park yellowstone wyoming world heritage site water united states of america usa travel destinations travel terraces surface processes scenics rock formations rock formation physical geography photography north america nobody nature natural world natural phenomena national parks mammoth hot springs landscapes landscape horizontal geology day contemporary color image