The following public explanation will be conducted on the Nakayama site in Akita Prefecture.
Date: September 15 (Sat.), 2012
Venue: Umakawa Kominkan, Gojome-machi, Akita
(Map ⇒ http://ekitan.com/eknv/C/0/D/516QDnU0E0Z.html)
This site contains the mound of horse chestnuts in the Late Jomon period.
Please refer to the Research Center for Kamegaoka Culture, Hirosaki University (JAPANESE).