Iwadono Castle
| Iwadono Castle | |
|---|---|
岩殿山城 | |
| Ōtsuki, Yamanashi, Japan | |
View of the Iwadono Castle site upon the mountain top | |
| Site information | |
| Type | Yamajiro-style castle |
| Open to the public | Yes |
| Condition | Ruins |
| Location | |
| Coordinates | 35°37′18.4″N 138°56′58.6″E / 35.621778°N 138.949611°E |
| Site history | |
| Built | 16th century |
| Built by | Oyamada clan |
| In use | Sengoku period |
| Demolished | 1582 |
Iwadono Castle (岩殿城, Iwadono-jō) was a yamajiro located in present-day Ōtsuki, Yamanashi Prefecture, Japan. The castle was active during the Sengoku period and served as a strategic outpost of the Takeda clan of Kai Province. Though now in ruins, it remains a popular destination for hikers and history enthusiasts.