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

travel destination travel destinations travel photography colour colour image color color image horizontal horizontal image outdoors outside day background people incidental people people in the background mammoth hot springs yellowstone national park unesco unesco world heritage site world heritage site wyoming usa us united states united states of america north america american north american spring water solidified calcium carbonate geology geological geothermal national park landmark landmarks famous well known well known non urban scene scenics scenic scene scenes scenery tourist destination tourist tourists holiday maker holiday makers on holiday mineral mineral formation white colour tree forest wooden walkway viewing platform