Yudono is a sacred mountain located in Yamagata Prefecture, Japan. It is part of the Dewa Sanzan, a group of three mountains that are significant in the Shinto and Buddhist traditions. Yudono is known for its spiritual significance and is often visited by pilgrims seeking purification and enlightenment. The mountain features a unique ritual where visitors participate in a purification ceremony involving water. The area is also home to the Yudono Shrine, which is dedicated to the deity Kannon. Yudono is a popular destination for those interested in spirituality, nature, and traditional Japanese culture.