378.4m-yama volcano
III Bed
, Oya Formation
III Formation
(Upper), Himenoura Group
III Formation
(Lower), Himenoura Group
3rd-a Terrace Deposit
3rd Gravel Formation
3rd Pyroclastic Cone Deposit
3rd stage
, Kurohime volcano
3rd stage
, Kusatsu-Shirane volcano
3rd stage products
, Iiji volcano
3rd stage products
, Naeba volcano
3rd Terrace Deposit
III Zone
, Kitakami mountains plutonic rocks