Tsukuba-san (Mt. Tsukuba)

Mt. Tsukuba is very famous mountain in Kanto area. Mt. Tsukuba has two peaks, Nanatai-san and Nyotai-san. Late Cretaceous gabbroic rocks are distributed around peak of the mountain.

Gabbro at Nanatai-san.

Peak of Nyotai-san. Anorthosite is exposed.