Gosen-shi Kyōiku Iinkai
Honma nishi iseki- Imade iseki
- Kamotsuba
- Kamotsuba 11-ji hakkutsu chōsa hōkokusho
- Kamotsuba 16-ji hakkutsu chōsa hōkoku
- Koseyama kofungun
- Koseyama Sakaidani 10-gōfun hakkutsu chōsa hōkoku
- Nakanishi iseki
- Niigata-ken Gosen-shi Ōkura iseki
- Sada Iseki 7-ji hakkutsu chōsa hōkoku
- Sada iseki han'i kakunin chōsa hōkoku
- Taifū 7-gō higai ni yoru Muromiyayama kofun shutsudo ibutsu