Dewasanzan Shrine Overview
Dewa Sanzan — literally “Three Mountains of Dewa” — refers to the trio of sacred peaks in Yamagata Prefecture: Mount Haguro, Mount Gassan and Mount Yudono. Together, they form one of Japan’s most revered pilgrimage sites, drawing both devout practitioners and curious travelers from around the world.
Dewasanzan Shrine is one of Japan’s most revered spiritual destinations. The three surrounding mountain peaks each hold their own shrine and its own symbolic meaning — Haguro represents the present, Gassan the past, and Yudono the future — together forming a pilgrimage known as the “Journey of Rebirth.”
The complex was founded in 593 by Prince Hachiko, son of Emperor Sushun, who is said to have been guided to Mount Haguro by Yatagarasu, a three-legged crow believed to be a divine messenger. Over the following centuries, the site became a center of shugendo, a syncretic practice blending Shinto and Buddhist mountain asceticism. Yamabushi — mountain ascetics who perform rigorous endurance feats as a form of spiritual training — have made pilgrimage here for over 1,400 years.
The main shrine building at the summit of Mount Haguro, the Sanjin Gosaiden, enshrines the deities of all three mountains under one thatched roof — the largest of its kind in Japan. Near the base of the mountain stands the Five-Story Pagoda, a national treasure dating back to 1372 and the oldest pagoda in the Tohoku region. The cedar-lined stone stairway leading to the summit — all 2,446 steps of it — is itself a designated national treasure, winding through a forest of centuries-old trees that create an atmosphere unlike anywhere else in Japan.
Best Times To Visit Dewasanzan Shrine
The ideal time to visit Dewasanzan Shrine is between July and mid-September, when all three mountains are simultaneously open to visitors. This window allows pilgrims and travelers to complete the full three-mountain circuit in its traditional order.
Mount Haguro is the most accessible of the three and remains open year-round, making it a viable destination at any time. However, winter visits require caution — the stone steps can become dangerously icy, and snowfall can make the climb treacherous without proper footwear. Borrowing the free rain boots offered at the Ideha Cultural Museum near the trailhead is strongly recommended in wet or snowy conditions.
Mount Gassan and Mount Yudono are typically closed from late autumn through spring due to heavy snowfall, with Mount Yudono reopening around late April to early May and closing again in early November. Autumn, particularly late September to early October, is also a spectacular time to visit Mount Yudono for its vibrant foliage.
Summer festivals, including the Haguro Matsuri fire ritual held annually on New Year’s Eve, draw devoted pilgrims from across Japan and offer a rare window into living shugendo traditions.