the turquoise colored spasmodic geyser in the upper geyser basin in yellowstone national park

attraction bacteria basin boiling caldera colored continental deposits destination divide ecology environment fumes geologic geology geothermal geyser heat hot landmark landscape mat mineral national natural nature outdoors outside park pool scenic sky spasmodic spring states steam steaming thermal tourist touristic trail travel turquoise united upper usa vacation vapor volcanic volcano water wild wilderness wonder wyoming yellowstone