Inside the castle, between the outer and inner moats, earthworks called "Okakoiyama" were built by piling up the soil from the moats in order to further strengthen the defense of the castle. It is thought to have been completed during the Hosokawa period, but its beginnings may date back to the Kuroda period.
Even today, "Okakoi Mountain" can be seen in various places.
Nakatsu Castle is the only castle town in Kyushu where the earthen ramparts surrounding the castle remain, making it an extremely valuable relic.
Even today, "Okakoi Mountain" can be seen in various places.
Nakatsu Castle is the only castle town in Kyushu where the earthen ramparts surrounding the castle remain, making it an extremely valuable relic.
Mount Okakoi depicted in a picture from the end of the Edo period
Okakoi Mountains in various places
Sannocho Okakoiyama (City designated historic site)
Okakoiyama in Nakabori. It is about 32m east to west and 2m high.
There is a stone wall in one area, and it is thought that a tower was built on top of this.
You can visit from the Matsuda Dental Clinic parking lot.
Jishoji Temple Okakoiyama (Prefectural designated historic site)
There is a stone wall in one area, and it is thought that a tower was built on top of this.
You can visit from the Matsuda Dental Clinic parking lot.
Jishoji Temple Okakoiyama (Prefectural designated historic site)
Jishoji Temple Okakoiyama (Prefectural designated historic site)
Around Jisho-ji Temple, the family temple of the Okudaira clan, feudal lords of Nakatsu Domain, remains the outer moat of Okakoiyama, measuring 150m north to south, 230m east to west, and about 5m high. Of this, about 120m north to south on the western side is designated as a prefectural area.
Kanayaguchi Okakoiyama (City designated historic site)
Okakoiyama in the outer moat. It is called "Kanayaguchi."
It is located west of the entrance to the Kanaya samurai residence on the south side of the castle town.
Approximately 130m east to west and 4m high.
It is located west of the entrance to the Kanaya samurai residence on the south side of the castle town.
Approximately 130m east to west and 4m high.
Takajomachi Okakoiyama (City designated historic site)
The remains of the earthworks are part of the outer moat, measuring 16m east to west and 10m north to south. They have been restored and are open to the public.
Details
Address | Sannocho, Shinuocho, Takajocho, Nakatsu City, Oita Prefecture |
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