221m-yama volcano
262m-yama volcano
2,161m-ho Lava
II Bed
, Oya Formation
II Formation
, Himenoura Group
2nd Gravel Formation
2nd Pyroclastic Cone Deposit
2nd stage
, Iizuna volcano
2nd stage
, Kurohime volcano
2nd stage
, Kusatsu-Shirane volcano
2nd stage products
, Iiji volcano
2nd stage products
, Naeba volcano
2nd Terrace Deposit
II Zone
, Kitakami mountains plutonic rocks