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Isedotai Site

Well knownIn most guidebooks for this region — but rarely with the practical detail.

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IsedotaiJomonWorld Heritagestone circlesKitaakita

A quick walk through Isedotai Site tells you less than a slow one — the details are where the history actually lives.

Isedotai has four stone circles, which is unique in Japan — every other Jomon circle site has one or two. They sit on a terrace above the Yoneshiro river with a view to the Shirakami mountains, were built about four thousand years ago, and were found in 1992 during construction of a bypass, which was subsequently rerouted around them.

What came out of the ground alongside them is unusual too: hundreds of clay figurines, many with a distinctive smiling face that has become the site's emblem, along with earrings and ritual vessels. It was inscribed with the Jomon Prehistoric Sites in Northern Japan in 2021. The circles are covered over from November to mid-April to protect the stones from frost.

What to know before you go

When to go

Late April–October, while the circles are uncovered

Opening hours

Site 9:00 AM – 4:30 PM | Museum 9:00 AM – 5:00 PM

Closed: Stone circles closed from November to mid-April | Museum open year-round

Time to allow

60–90 minutes

Fee

Free | Museum free

How to reach it

Access notes

Isedotai, Wakigami, Kitaakita, near Odate-Noshiro Airport. Car recommended. Both are free for all ages. The stone circles are closed from November to mid-April to protect the stones over winter; the museum remains open.

Historical notes & tips

**Closed November to mid-April.** The circles are covered for winter to stop frost damaging the stones. The museum stays open, but the point of coming does not. **Four circles, which is the record.** No other Jomon site in Japan has more than two. Walking between them shows how they relate to each other and to the river terrace. **Free, entirely.** That is unusual for a World Heritage component. **See the smiling figurines.** Hundreds of clay figures came out of this site and the smiling-face type is specific to it. They are in the museum. **The road was moved for it.** A bypass under construction in 1992 hit the site and was rerouted. That is why the terrace is intact.

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