岩尾城, Medieval mountain fortress in Saku, Japan.
Iwao Castle stands on a hilltop at 659 meters above sea level, surrounded by steep cliffs between the Chikuma and Yukawa rivers.
The castle was constructed in 1478 by Oi Yukitoshi, a member of the Ogasawara clan, and remained active until its abandonment in 1583.
The castle grounds contain pilgrimage monuments dedicated to the Saigoku, Bando, and Chichibu Kannon, reflecting Buddhist traditions of the period.
The castle ruins are accessible through Prefecture Road 78, with the nearest railway stations being Nakasato Station at 3.7 kilometers and Sakudaira Station at 4.1 kilometers.
The fortress witnessed a notable battle where the Yoda brothers, military commanders under Tokugawa Ieyasu, were killed by gunfire during a siege.
GPS coordinates: 36.25383,138.42889
Latest update: April 3, 2025 10:14
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