Old Faithful is a famous geyser located in Yellowstone National Park, Wyoming. It is known for its predictable eruptions, which occur approximately every 90 minutes. When it erupts, it shoots hot water and steam high into the air, reaching heights of up to 180 feet. This natural wonder attracts thousands of visitors each year who come to witness its spectacular displays. The name "Old Faithful" reflects its reliability, as it has been erupting consistently for many years. The geyser is part of a larger geothermal area that includes other geysers and hot springs, making Yellowstone a unique destination for nature lovers and scientists alike.