Ah sunny Okayama Yu you walk | Sightseeing and area information in Okayama Prefecture

It is a large keyhole-shaped tumulus with a total length of 206 meters and a double moat, both inside and outside. It became a nationally designated historic site in 2. It is the largest scale in the Bizen area. The size of the tumulus can be seen best from the middle embankment on the south side. In addition, Ryōmiya (Ise) Shrine is enshrined in the front part. This is an ancient tomb that you can enter.