norris geyser basin with colloidal pool in porcellain basin, yellowstone national park, wyoming

algae america american barren basin black blue boardwalk colloidal colorful deposits environment forest fumaroles geothermal geyser ground growler high hike hiking hills hot lakes landscape ledge mineral national natural nature norris outdoor outdoors park plateau pool pools porcelain porcellain recreation rocks sky spring springs states steam summer sunday supervolcano travel travertine trees turquois united usa vent viewed volcanic volcano water west western wild wilderness wyoming yellowstone