Norris Geyser Basin
Norris Geyser Basin is the hottest, oldest, and most dynamic of Yellowstone’s thermal areas. The highest temperature yet recorded in any geothermal area in Yellowstone was measured in a scientific drill hole at Norris: 459°F (237°C) just 1,087 feet (326 meters) below the surface! There are very few thermal features at Norris under the boiling point (199°F at this elevation)
Norris shows evidence of having had thermal features for at least 115,000 years. The features in the basin change daily, with frequent disturbances from seismic activity and water fluctuations.
(Taken in September, 2017 with a Leica SL camera fitted with a 24-90mm Vario Elmarit f2.8-4.0 lens set at 47mm)