日本アルプス
He climbed the Japanese Alps and Okuchichibu Mountains. He wrote a book, "The Japanese Alps and a Pilgrimage to Chichibu" (日本アルプスと秩父巡礼 "Nippon Alps to Chichibu Junrei") in 1919. This book was republished as "Mountains and Ravines" (山と渓谷 "Yama to Keikoku") in 1930.