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Ōyu Stone Circles

Two large late-Jōmon stone circles built on an artificially flattened plateau on the Ōyu River, part of the 'Jomon Prehistoric Sites in Northern Japan' UNESCO World Heritage inscription.

Dated events and their evidence

• 2,000 BCE mainstream
  construction of the stone circles (late Jomon period) source
• 1,500 BCE mainstream
  abandonment (end of late Jomon period) source

Where

40.2717° N, 140.8039° E

Sources

• https://en.wikipedia.org/wiki/%C5%8Cyu_Stone_Circles

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