Hinata Caves
Takahata, Japan
The Hinata Caves (Hinata dōkutsu) is an archaeological site with a cave dwelling in use from the early through late Jōmon period, located in what is now part of the town of Takahata, Yamagata in the Tōhoku region of Japan. The site was designated a National Historic Site of Japan in 1977.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).