Sapphire Pool, geyser, Biscuit Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA

america american area areas basin biscuit blue bodies body conservation countryside day daylight daytime during energy exterior exteriors famous geologic geological geologically geology geothermal geothermic geyser geyser geysers hot hot spring hot springs known landscape landscapes national national natural nature nobody north of outdoor park park parks photo photos pool power preserve preserves renowned reserve reserves sanctuaries sanctuary sapphire scenery scenic seeing shot shots sight sights source sources spring springs states steam steaming the thermal turquoise united upper us us american usa vapor vapour water waters well well known wells wildlife worth wyoming yellowstone