Geological Survey of Japan (GSJ), AIST is a public organization to carry out various geological surveys and researches. GSJ has consistently provided geological information, which is essential to build a safe and sustainable society, since its establishment in 1882.
Geology of the Kakunodate district / J. Hosoi, Y. Shirahama, T. Komatsubara, T. Kudo. – Tsukuba : Geological survey of Japan, 2020 - (Quadrangle series, 1:50,000, Akita (6) ; N 21, NJ-54-19-7).Bibliogr. reference of each chapter.