Suriusuyama Kofun

What it is

• A keyhole-shaped burial mound (kofun).
• Part of the Arioka Kofun Group.
• Built around the late 4th century.
• Designated a National Historic Site in 1984.

What to see

• The 49.2-meter-long keyhole-shaped tumulus.
• Ridge overlooking the Doki River alluvial plain.
• Split-bamboo-shaped stone coffin (Important Cultural Property).
• Stone coffin exhibited at Zentsuji Civic Hall.

Notes written by Japan Gems from facts in Japanese Wikipedia.