At 3,190 m (10,466 ft),[1] it is the third tallest peak in Japan and the second highest in the Akaishi Mountains.

East of the summit lies the cirque Hosozawa Kar (細沢カール, hosozawa-karu).

It has been conceived that landslides around the summit have led to the growth of linear hollows.

Taking into account such landslides, Mount Aino might have been dozens of metres higher in the past compared to its present altitude.

On the summit a trail forks towards Mount Mibu (三峰岳, Mibu-dake) in the west, where it connects to the Senshio Ridge (仙塩尾根, senshio-one) traversal route.