late spring in yellowstone national park: steam pours from puff`n stuff geyser in the back basin area of norris geyser basin

area back background barren basin blue caldera clouds day debris environment feature forest geothermal geyser green hillside horizon hot hydrothermal landscape late national natural nature norris nps outdoor park plume pours puff puffn scenery scenic sky spring springtime steam stuff thermal tourism travel trees vapor view volcano wyoming yellowstone