Hirai Kanayama Castle

History

In 1438 Uesugi Norizane was the Kanto Kanrei (governor of the Kanto provinces directly under the Ashikaga Shogun). When discord erupted between him and the Ashikaga he fled to the Kozuke region and built Hirai Kanayama Castle. In 1467, when the Onin War broke out, Uesugi Akisada established a new castle, Hirai Castle, from which the Uesugi would continue to govern until they were defeated by the Hojo in 1552. Hirai Castle is a hilltop castle and more suitable to governing a large province. Hirai Kanayama Castle remained as one of the mountaintop castles protecting the region and as the main backup castle to Hirai Castle when under siege. The castle was abandoned when the Uesugi were defeated.

There are some suspicious looking stone walls partway up the mountain. The man at the information center thought they could be from the remains of palaces built around the backside of the castle, but I think they look more like the remains of more recent farm fields.

This route to the castle is actually the rear entrance. The main entrance is the other side of the castle but that part of the base of the mountain is now a golf course. That partly explains why it is so steep and not so easy to climb here. There are some walking sticks near the trail head, if you don't have a trekking pole I suggest taking one with.

Visit Notes

There are very few busses from the station to the castle so please check the bus schedule carefully. For this trip I got off at the Hino Elementary School (日野小学校前) bus stop to visit Hirai Kanayama Castle and then walked to Hirai Castle where I got the bus back to the train station. There is not much left to see at Hirai Castle, but it's worth the short walk to visit and it's right on the bus line back to the station. In front of the Yashima Shouten Mae (矢島商店前) bus stop there is also a small volunteer run information center (I think it's their house) and the proprietors will happily give you maps and materials about the castles. The man's father was one of the main people who surveyed Hirai Kanayama Castle. I spent a good 30 minutes chatting while waiting for the next bus.
バスが少ないので時刻表をよく確認してから行きましょう。今回私は日野小学校前で降りて、金山城を見てから平井城まで歩いて、そして平井城からまたバスに乗って帰りました。この道は実は大手道ではなく搦め手口です。大手口は現在ゴルフ場なので利用できません。登山口に杖が置いてあるので、ストックがなければ持って行った方が楽です。必須ではありませんが、ちょっと険しいちょっと滑りやすい箇所はあります。またここから登り始めると途中で石垣が多く見られます。案内所の人によると当時の屋敷跡ではないかと言ったが、私はもっと近世の畑後ではないかと思いました。

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Gallery

Honmaru
Entrance to the castle trail
Stone walls, likely to be modern.
More of the same stone walls
Lookout platform
Lookout platform
Entrance to the castle
large horikiri trench
Horikiri trench
Sannomaru entrance
Obikuruwa Bailey
Sannomaru Bailey
Ninomaru Bailey
Honmaru entrance
Honmaru Bailey
Rest house in a bailey behind the Honmaru
Unnamed bailey and horikiri trenches
Castle entrance and trenches
Terraced Baileys
Terraced baileys
Terraced Baileys
Leveled area for a lookout point
Remains of a gate foundation
Otemon Gate foundation
Otemon Gate foundation
Otemon Gate foundation
Otemon Gate foundation
Large horikiri trenches on the way to the Well Bailey
Well Bailey illustration
Well Bailey
Map
Map

Castle Profile
English Name	Hirai Kanayama Castle
Japanese Name	平井金山城
Alternate Names	Hirai Tsumeshiro
Founder	Uesugi Norizane
Year Founded	1438
Castle Type	Mountaintop
Castle Condition	Ruins only
Designations	Prefectural Historic Site
Historical Period	Pre Edo Period
Features	trenches, stone walls
Visitor Information
Access	Gunma Fujioka Sta (Hachiko Line); 20 min bus (Kamidaira bus to Hino Shogakko Mae)
Visitor Information	mountain trails open anytime
Time Required	120 mins
Website	http://www.city.fujioka.gunma.jp/kakuka/f bunkazai/uesugisi2.html
Location	Fujioka, Gunma Prefecture
Coordinates	36° 12' 50.72" N, 139° 1' 3.29" E
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Admin
Added to Jcastle	2017
Admin Year Visited	2017
Admin Visits	April 15, 2017

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