857-18566 - Mammoth Hot Springs area, Minerva Terrace, in Yellowstone National Park.

817-386976 - Liberty Cap Mammoth Hot Springs Yellowstone National Park Wyoming, WY

817-386977 - Minerva Terrace Mammoth Hot Springs Yellowstone National Park Wyoming, WY

817-375979 - Hot Springs, South Dakota - The Mammoth Site displays mammoth bones approximately 26,000 years old, left as they were discovered in a former sinkhole

817-375973 - Hot Springs, South Dakota - The Mammoth Site displays mammoth bones approximately 26,000 years old and, in the exhibit hall, a full-sized mammoth replica

817-375975 - Hot Springs, South Dakota - The Mammoth Site displays mammoth bones approximately 26,000 years old, left as they were discovered in a former sinkhole

817-375972 - Hot Springs, South Dakota - The Mammoth Site displays mammoth bones approximately 26,000 years old

817-375978 - Hot Springs, South Dakota - The Mammoth Site displays mammoth bones approximately 26,000 years old, left as they were discovered in a former sinkhole

757-193 - Woman relaxing in hot spring, Mammoth Lakes region, California, United States of America, North America

757-192 - Woman relaxing in hot spring, Mammoth Lakes region, California, United States of America, North America

832-7052 - Mammoth Hot Springs, Yellowstone Nationalpark, Wyoming, USA, Vereinigte Staaten von Amerika

764-2403 - Main Terrace Hot Spring with snow, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

767-560 - The Mammoth Site, Hot Springs, South Dakota, United States of America, North America

767-559 - The Mammoth Site, Hot Springs, South Dakota, United States of America, North America

741-2844 - The Mammoth Site, Hot Springs, Black Hills, South Dakota, United States of America, North America

698-2262 - Dead trees at the top of Canary Spring, Main Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

698-2257 - Canary Spring, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

698-2245 - Canary Spring, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

698-2243 - Dead tree trunks, Canary Spring, top Main Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

698-2242 - Dead tree trunks, Canary Spring, Main Terrace, Mammoth Hot Springs, Yellowstone National Park, UENSCO World Heritage Site, Wyoming, United States of America, North America

698-2237 - Dead tree trunks, Canary Spring, top Main Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

698-2234 - Liberty Cap, Mammoth Hot Springs, Yellowstone National Par, UNESCO World Heritage Site, Wyoming, United States of America, North America

777-1994 - Main terrace, Mammmoth Hot Springs area, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

777-1992 - Main terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

365-1122 - Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America

83-4570 - Close-up of the limestone terraces formed by volcanic water depositing six inches of calcium carbonate a year, Mammoth Hot Springs and Terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

83-4571 - Close-up of the limestone terraces formed by volcanic water depositing six inches of calcium carbonate a year, Mammoth Hot Springs and Terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

29-2597 - Travertine calcite deposits, Minerva Terrace, Mammoth Hot Springs and Terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America

306-2387 - Terraces, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (USA), North America

29-491 - 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

197-1581 - Minerva Spring, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (USA), North America

29-2595 - Travertine calcite deposits on the Canary Spring terraces, Mammoth Hot Springs and Terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

685-413 - Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America