Angel Terrace, Upper Terraces, limestone sinter terraces, hot springs, colorful thermophilic bacteria, microorganisms, dead trees, Mammoth Hot Springs Terraces, Yellowstone National Park, Wyoming, United States of America, USA

america american angel area areas attraction attractions bacteria chalk colorful conservation day daylight daytime dead deceased died during energy exterior exteriors famous geothermal geothermic hot hot hot spring hot springs known lime limestone mammoth microorganisms national national natural nature nobody north of outdoor park park parks photo photos power preserve preserves renowned reserve reserves sanctuaries sanctuary seeing shot shots sight sights sinter sinter site sites spring springs springs states stone terrace terrace terraces terraces the thermal thermophilic tourist tree trees united upper us us american usa well well known wildlife worth wyoming yellowstone