It was had curved rings arranged in three directions around the main enclosure, and the site of the vassals and other buildings at the foot of the mountain.

Sasaki Hideyoshi was the uncle of Minamoto no Yoritomo, and he and his descendants were appointed shugo of Ōmi Province.

[2] The castle is located to the south of the center of modern Takashima on the west bank of Lake Biwa in the northwestern part of Shiga Prefecture.

At the foot of the Aibano Plateau, the Nishi-Ōmi Road runs north-to-south, connecting Kyoto with the Sea of Japan, and the Aibagawa, the largest river on the western bank of Lake Biwa, flows to the south.

The ruins are located about 35 minutes on foot from Shin-Asahi Station on the JR West Kosei Line.