yellowstone national park with steam rising from excelsior geyser at midway geyser basin, wyoming, usa

algae america american and basin beautiful blue color colorful colour colourful crater deposits environment excelsior flowing fog forest geological geology geothermal geyser geyserite hill hot ice landscape may midway mineral national natural nature of orange outdoor outdoors park plateau rising rocks runoff sky spring springs states steam sulphur super supervolcano thrive travel travertine turquoise united usa volcanic volcanism volcano water waters west western wild wilderness wyoming yellow yellowstone