In-depth article
Okayama
Okayama Castle
岡山城
Look at the foot of the black keep and you'll see its base is not square but a lopsided pentagon.
Japan's 100 Fine Castles No. 70CastleHilltop
Japan Castle Atlas
Kobayakawa clan
小早川氏
Connected castles
In-depth article
663highlandCC BY 2.5Wikimedia Commons
LordRecord source: jokaku
In-depth article
Matsuyama, Ehime
Yuzuki Castle
湯築城
The park next to Dogo Onsen is the castle from which the Kono clan ruled Iyo for some 250 years. It had no stone walls and no keep, only earthen ramparts and a double ring of moats.
Japan's 100 Fine Castles No. 80CastleHilltop
_-_panoramio.jpg){kind=link}
LordRecord source: wikipedia
Basic information
Mihara, Hiroshima
Mihara Castle
三原城
Next 100 Fine Castles No. 172CastleFlatland
LordRecord source: jokaku
Basic information
Mihara, Hiroshima
Niitakayama Castle
新高山城
Next 100 Fine Castles No. 173CastleMountain
LordRecord source: jokaku
Basic information
Shikokuchūō, Ehime
Kawanoe Castle
川之江城
CastleMountain
LordRecord source: wikipedia
Basic information
Mihara, Hiroshima
Takayama Castle
高山城
CastleMountain
LordRecord source: wikipedia
Basic information
Takehara, Hiroshima
Kimura Castle
木村城
CastleMountain
LordRecord source: wikipedia
Basic information
Shingū, Fukuoka
Tachibana Castle
立花山城
CastleHilltop
LordRecord source: wikipedia