Located in the northwest edge of the caldera, it is the hottest geyser basin in Yellowstone, and home to the famous Steamboat Geyser.
The Norris Geyser Basin is huge and separated into three areas - Porcelain Basin, Back Basin and One Hundred Springs Plain. These areas are dotted with several geysers and colourful hot springs characteristic to the park. The Norris basin is largely barren due to the acidic nature of the surface, and due to this the water in the geysers and springs is acidic as well. With the Roaring Mountain in the backdrop, with it's several scalding fumaroles and steam vents, the Norris Geyser Basin has tons of geysers worth a look, but none more so than the Steamboat Geyser. It is the largest geyser in the world, erupting up to heights of nearly 90 metres! It has small eruptions periodically, and major eruptions once in about a year. The Norris Basin is highly dynamic, and is prone to unusual activities and disturbances. There is a noticeable change in eruptive patterns, colours and acidity, temperature of the water throughout the basin. The Porkchoop Geyser in particular, has been known to produce anomalies. Many part of the Norris Geyser have been closed due to it's dangerous nature.