For more information see Aida Kokuzousan Castle.
Nakanojinjō is part of the Aida-jōkangun, a complex or network of fortified spaces on and beneath Mount Kokuzō. It is centrally located between several other sites, with Akiyoshi-toride, a fort site, on the ridge to the east, and another formerly fortified ridge to the southwest. The route to the north goes to the topmost ridge, with Aida-Kokuzōsanjō in the east, and Utsutsujō to the northwest. I visited Nakanojinjō after climbing down from Kokuzōsanjō (also called Minenojō). A spur of fortified ridge is located beneath Nakanojinjō, and I also went there too, climbing down the mountain that way.
Nakanojinjō, meaning ‘Middle Camp Castle’, itself consists of earthworks and masonry. The layout is of a central bailey complex with some sub-baileys below. There is a large horikiri (trench) sunk into the ridge at the rear of the main bailey with tall dorui (earthen ramparts). To the prow and aft of the main bailey ishigaki (stone-piled ramparts) remains can be seen. A spur of terraced mini-baileys goes down the ridge south, but another spur goes to another fort site in the southwest.
|English Name||Nakanojin Castle|
|Year Founded||Kamakura Period|
|Castle Condition||Ruins only|
|Historical Period||Pre Edo Period|
|Artifacts||Horikiri, Dorui, Ishigaki|
|Features||trenches, stone walls|
|Access||Bus from Matsumoto Station|
|Visitor Information||24/7 free; mountain|
|Time Required||40 minutes|
|Location||Matsumoto, Nagano Prefecture|
|Coordinates||36° 21' 52.88" N, 138° 0' 21.46" E|
|Added to Jcastle||2023|
|Admin Year Visited||Viewer Contributed|
|Friends of JCastle|
|Shiro to Kosenjō|