The site is located on the southern slope of a tuff hill, and consists of 26 tombs, of which 23 were excavated in 1972. The tombs have various styles of ceilings, some of which are gabled or arched, and some of the tombs have a finished floor. Of note are Tombs 6, 10 and 15, which were found to contain concentric and lattice patterned decorations in red paint, and are the furthest north examples of decorated tombs which have yet been discovered.
Artifacts discovered included clay vessel shards, Sue pottery, fragments of metal implements or swords, all of which date the tombs to the late 6th century in the late Kofun period through early Nara period, although some of the tombs appear to have re-used in the 9th century.[2][3]
The tombs were backfilled for preservation except for Tomb 15, which was preserved as part of a museum exhibition, along with the excavated items.
The site is a three minute walk from the Arigabukuro bus stop on the Miyagi Kotsu bus from Furukawa Station on the Tohoku Shinkansen
^"宮沢遺跡". Cultural Heritage Online (in Japanese). Agency for Cultural Affairs. Retrieved 25 December 2016.
^Pearson, Richard; Barnes, Karl L. Hutterer, Gina Lee; Hutterer, Karl J (1986). Windows on the Japanese past: studies in archaeology and prehistory. Center for Japanese Studies, University of Michigan. ISBN0939512238.
