Yellowstone National Park Do you know what area has the most geothermal activity in the world? Even though other places have geothermal activity, Yellowstone National Park was established in 1872 and covers the largest area, encompasses nearly 3,500 square miles. The park has Old faithful geyser, Lake Yellowstone which is in the caldera of a dormant volcano, and the park also has bubbling mud pots, hot springs and hot colorful pools.
More than half of the world’s geysers are located in Yellowstone. There are 10,000 thermal features in the park and only 3% are geysers. The most famous one is Old Faithful, named because of its reliability, and goes off ever 45-90 minutes. Subterranean chambers and conduits are what connect