A rare star-shaped castle ruin known as the "Shinshu Goryokaku." Its unique design, incorporating Western-style fortification techniques during the Boshin War, makes it a fascinating site for history buffs and casual visitors alike.
Historic Sites
Castle
Highlights
Its unique five-pointed star-shaped fortress structure
Experience the history of the late Edo period
Breathtaking views of the Northern Alps
Existing stone walls and moats from the period
Learn about its history at the "Goryokaku Ai no Yakata" (Goryokaku Hall of Harmony) within the ruins
20 minutes (10.00 km) by car from Saku-Minami IC.
East Japan Railway Company (JR East) Usuda Station or Ryūōkaku Station (approx. 20-minute walk, 1.5km from either station; no bus service available). Show route
Op.Hours
9:30 AM to 4:00 PM (Closed every Tuesday)
Cld.Days
Every Tuesday
Fee
Free
INFO
On closed days, before opening hours, or after closing hours, please use the stamp located outside the Goryokaku Aino-kan.
Ryūōkaku Castle, located in Taguchi, Saku City, Nagano Prefecture, is a five-pointed star-shaped fortress built during the late Edo period. The lord of the castle, Matsudaira Norimori, the feudal lord of the Oku-dono domain in Mikawa Province, was interested in Western military science and studied fortification methods to counter artillery attacks. Ryūōkaku Castle was designed by Norimori as a new residence, though it's believed there was no involvement from Western experts like the French. However, due to economic and time constraints, the stonework was simplified, leaving many unfinished parts. After the Meiji Restoration, Ryūōkaku Castle was demolished. However, remnants such as the stone walls, moats, and the main platform remain, allowing visitors to imagine its past glory. The castle ruins also offer stunning views of the majestic Northern Alps. Ryūōkaku Castle is a fascinating place, regardless of your interest in history.