There are a lot of red stones (赤石 Aka-Ishi) around the Akaishi River, a tributary of the Ōi River in the southern part of Southern Alps. Then it was said that the mountain of red stone came to be called Mount Akaishi. The mountain represents the mountain range and the name Akaishi is used for the whole range mountain range, Akaishi Mountains.[1]
Englishman Walter Weston introduced the Western world to the Japanese Alps in his book Mountaineering and Exploring in the Japanese Alps. During his visits to Japan, he climbed Akaishi Mountains. Several monuments in his memory have been set up in several places in the Japanese Alps.
He climbed the following peaks:
1892 Mount Akaishi - The first non-Japanese to climb this mountain