A house structure remaining its quadrant with a right-angled wall slot, a hollowed hearth containing both red-hot stones and burned soil, and nine pits, some of which must have served for upright postholes. It might well have been a pit-dwelling of a squared shape with its side 5m. Another house structure of the same period was found, 30m apart from here to the west.

Eight stone-arranged graves, one of which had a complete jaw underneath the stones. Two types of stone-arrangement are recognised; of about thirty skull-sized stones arranged to make a rounded plan, and of around ten skull-sized stones paved randomly. Those eight graves, which have been exhibited at the University Botanical Garden adjacent to the locale, together with six funerary urns close to them constituted a cemetery of the early Late Jomon.

A funerary urn. The cemetery, as mentioned above, had six funerary urns. Two of them seem to have been placed on the earth while others were embedded into the ground. These pottery graves were followed by the stone-arranged graves, from the point of view of typological studies on pottery, as well as the observation on one urn which had partly been destroyed by stone-arranging activity.

Well-preserved fallen branches and twigs of a mixed forest, with alternately depositing layers of sand and clay or peat; all assigned to Final Jomon. From these layers appeared a wide variety of natural remains with an enormous number of footprints of both human beings and animals. Paleobotany, palynology, and sedimentology contribute to the reconstruction of micro-ecology as a mixed forest within the Shirakawa fan area of reticulated canals during Final Jomon Period.

An inhumation of a crouched adult woman (20-40 years old). She was laid on her right side, north to south, with her head to the north. She had experienced teeth extractions. There are, as grave goods, a large stone at the forward of the neck, and a cowrie around the femora; the species of that shell has traditionally been believed in Japan as what could bring an easy delivery to a pregnant woman.

Paddy field at the backed marsh of the Takano river. Two contrastive types of land using are revealed in the field. The northern half, composed of north-to-south directing small rectangular panels with gentle ridges for water-keeping (10 square-meters per panel), left their surface undulant. The southern half on the other hand, composed of east-to-west directing larger panels, let their surface smooth. The implication is that even in the early food-producing community had already achieved a calculative irrigation system.

Paddy field of small-scale cultivation. Even this narrow gentle slope could have been exploited to obtain the leveled ground for water-level maintaining, as shown by the fact that a subtle bank divides this narrow field into two paneled areas. The amount of plant-opal recovered from a number of core samples is quite small, which indicates the rice cultivation of short duration.

One of the main torrents of the granite debris flow originated from the Hiei mountainous area to the east. The yellow-brown sand deposition caused by this event has been sheeted almost everywhere in and around the University Campus, occasionally containing huge rocks measuring 2m in diameter and sometimes depositing more than 2m in thickness. More than half million cubic meters of debris must have been brought to the Shirakawa fan.

A typical V-shaped ditch of Yayoi period up to 2.5m wide,1m depth.
This ditch was running from one big natural river,so must be used for irrigation around nearby fields.