A trench work with Dr. H. Hoshizumi on 25 August, 2000,
near the summit of the Yo-so-mi-yama (1910 crypt dome
at the foot of Usu volcano).

A columnar section of the trench wall.

Brief description of a series of field work during 22 to 26 August, 2000 is HERE (in Japanese with a lot of pictures)