Among the nine active geyser basins at Yellowstone National Park, the Norris Geyser Basin is recognized as the hottest. With its 193 geysers, including Steamboat Geyser, which is the tallest active geyser in the world, Norris Geyser Basin is well worth the international attention it receives every year. The tour of the Norris Geyser Basin, featured here on this National Park Service page, includes "stops" dedicated to the Congress Pool, the Blue Geyser, the Whirligig Geysers, Colorful Water, Crackling Lake, Emerald Spring, and many other points of interest. Along the way, the site treats readers to stunning photos and informative text. For educators who are looking for ways to bring Yellowstone to life in the classroom, or for anyone with an interest in this most famous of parks, this tour offers a window into the Park's fascinating geothermal features.