Sasaga Castle (Chikuma)

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ChikumaSasagajou (12).JPG


Sasaǵajō was used as part of a network of fortifications protecting the territory of Aida and guarding the mountain trail that led between valleys (in former times mountain ridges were a frequently used means of going to-and-fro'). According to the Shinputōki, the castle was under the command of Yamasasa Taji (it was also called Yamasasajō, Nishinomiyayamasasajō, or Nishinomiyasasaǵajō), who was a high-ranking retainer of the Iwashita Clan. The village of Nishinomiya was located beneath the castle which may have been used as a redoubt by the villagers if they came under attack.

Visit Notes

The ruins of Sasaǵajō consist of a series of baileys grouped together in a shape like an old galleon, the stern and bow elevated above a shallower central area. In this case the stern would be the main bailey, as that's where the marker for the castle is, and the second bailey is the depression in the middle of it and the third. The second bailey is the flattest and widest. At the rear of the fort are the remains of a trench. There is a forward bailey complex, the fourth bailey which has terracing below, though this is a very small space (a hokora (mini-shrine) is here).

Sasaǵajō can be readily accessed by car, since there is a retaining wall by the motorway with a staircase running up the side of it and this can be used to access the ridge. However, on foot I can't say! I began by coming down a series of old mountain roads which used to service a village built on the mountainside. Many of the houses here are now abandoned and the roads disused, but they were quite convenient for me. I couldn't see how I would get to the trail to Sasaǵajō so I climbed over a wier (凹 < of this shape) and assaulted the castle head-on, which is always silly really. After some tough climbing I made it to the castle ruins.

  • Small Bailey
  • Dorui

Castle Profile
English Name Sasaga Castle (Chikuma)
Japanese Name 筑摩笹城
Alternate Names 山笹城・西宮山笹城・西ノ宮笹ヶ城 Yamasasajō / Nishinomiyayamasasajō / Nishinomiyasasaǵajō
Founder Aida Clan; Yamasasa Taji
Year Founded Sengoku Period
Castle Type Mountaintop
Castle Condition Ruins only
Historical Period Pre Edo Period
Artifacts Kuruwa
Features trenches
Visitor Information
Access Nearest station is Akashina Station on the Shinonoi Line; hike down from Ametoya Castle site via forestry road; take maintenance stairway from hard shoulder of Highway E19
Visitor Information 24/7 free; mountain
Time Required 30 minutes
Location Matsumoto, Nagano Prefecture
Coordinates 36° 21' 30.46" N, 137° 58' 54.37" E
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Added to Jcastle 2021
Contributor ART
Admin Year Visited Viewer Contributed

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