During 1995-97, we had three field seasons in the Notoro peninsula regions. We invesitigated Notro west coast site, Misaki N site, and Misaki V site. Notro west coast site was datable to Okhotsk period. As result of prospecting, we found out three or four pit dwellings. Misaki N site and Misaki V site were datable to Satsumon period. As result of excavation and measurement, we found out three pit dwellings in N site, eleven pit dwellings in V site. We pablished report of the excavation at these site in 1999 (Hokkaido Museum of Northern Peoples 1999). On the beginning of these investigations, we intended to clarify the relations to Okhotsk culture and Satsumon culture, as well as relations to Okhotsk culture and Epi-Jomon culture. Continuously, we intended to investigate into these relations. In 2003, we reopened the excavation in the Notoro peninsula regions. We chosed Misaki VI site. This site included two pit dwellings. We excavated pit dwelling 1, where lies to the north of
another one (pit dwelling 2) . Pit dwelling 1 was square in plan with a side 8 m. In the floor, we found potteries with straw - rope pattern, stone arrow heads, knife-shaped stone tools, polished stone axes and so on. So, pit dwelling 1 was datable to Epi-Jomon period. But, it did not have entrance corrider on the comer and fire place in the middle of the floor, which are features of Epi-Jomon culture.
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