01 / Futatsuka Kofun
Three stone chambers in one mound,each different in length and build.

A 60 m keyhole-shaped tomb at the southern end of the Teraguchi tomb cluster. The chamber in the rear circular part is a double-sleeved type 16.4 m long, the one in the front part is a single-sleeved type 9 m long, and the one in the projecting part is 7.8 m long, with a 0.9 m step in floor height between chamber and passage. The Agency for Cultural Affairs commentary suggests the three were built at the same time or close together, in the early 6th century.
- National historic site, 1978
- Three side-entrance chambers
- 16.4 m, 9 m and 7.8 m long

