01 / Ebetsu Kofun Group
Thought kin to northern Tohoku's tombs,the only survivor at their northern limit.

It is a cluster of tombs from the late 8th to the mid-9th century. A 1980 survey confirmed 21 tombs, and 18 were preserved. The Agency for Cultural Affairs notes that of three sites of this kind found along the Ishikari River, this is the only one that survives.
- National Historic Site (1998)
- Late 8th to mid-9th century
- 18 tombs preserved
