TravelerYellowstone and GlacierShow tripAdd to bucket listRemove from bucket listShareSaturday, August 19, 2017 at 6:02 PM ☀️ 22 °C Altitude: 7,310 ft United StatesGrotto Geyser44.4718, -110.8417744°28’18” N 110°50’30” WGrotto and relative August 19, 2017 in the United States ⋅ ☀️ 22 °C Both splashing and hissing and booming together is a great show. 0 likes