opened in Ebetsu, Hokkaidà Â, Japan in 1999. Its aim is to protect, preserve, and utilize buried cultural properties.
In December 2017, researchers from the Hokkaido Archaeological Operations Center announced the discovery of the oldest ancient stone with a human face painted on it (12x13cm), estimating its creation date between 2,500 and 1,000 B.C.
The exhibition hall features two Important Cultural Properties: an earthen JÃ Âmon mask from the Mamachi Site and artefacts excavated from the Bibi 8 Site.