Mount Iwabitsu, a mountain with a castle where the Sanada clan of the Warring States period resided.

  • Gunma
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Photo by Gugutto Gunma Photo Studio
Iwabitsu is one of Gunma's 100 most famous mountains and one of the eight most scenic views in the Agatsuma region. The 200-meter cliff on the southern face of the mountain is composed of oddly shaped rocks and monstrous stones, creating a rugged mountain that overwhelms the viewer.

As the site of the residence of the warring Sanada clan

Photo by Gugutto Gunma Photo Studio
Photo by Gugutto Gunma Photo Studio
The Agatsuma area came under the control of the Takeda clan after a territorial dispute during the Warring States period. The Sanada clan took over the castle, and Yukimura is said to have spent some time here. It is also said to have occupied an important position as the midpoint of the Sanada Road connecting Ueda in Shinshu and Numata in Jyoshu, and as the center of the Sanada clan's rule in the Agatsuma County area, it had a deep connection with the Sanada clan. A mountain castle called Iwabitsu Castle was built on the hillside of Mt. Iwabitsu, and is dotted with a vertical moat and a number of wards. When the Takeda clan was in danger of dying out, Masayuki Sanada advised Katsuyori Takeda to flee to Iwahitsu to regain his strength, which shows that he had great trust in this area. The scenery of the satoyama and the historic sites will make you think back to the days of the Warring States period.
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