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. The vast majority of the waters at Norris are acidic, including acid geysers which are very rare.
The basin consists of two areas: Porcelain Basin and the Back Basin. Porcelain Basin is barren of trees and provides a sensory experience in sound, color, and smell; a 3/4-mile (1.2-km) bare ground and boardwalk trail accesses this area. Back Basin is more heavily wooded with features scattered throughout the area. A 1.5-mile (2.4-km) trail of boardwalks and bare ground encircles this part of the basin.
Source : nps.gov
What most struck me is really the strong smell when you arrive there. The walk around the basins is just lovely. We arrived at 8am and it was not crowded at all which was so pleasant. The whole experience is to let yourself transported by the water noises, the heat and the sulfur smell. All your sense are in check there!
COPYRIGHT: All pictures belong to Fanny Cohen Sanchez, @fannychn on Instagram, Three Times Nine 2021.
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