- 221m-yama volcano
- 262m-yama volcano
- 2,161m-ho Lava
- II Bed, Oya Formation
- II Formation, Himenoura Group
- 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, Kakuda
- 2nd Terrace Deposits, Mount Gozaishoyama
- II Zone, Kitakami mountains plutonic rocks