The Structure of Domination in the Ancient Ouchi Basin (Hatta-go, Yoshiki-gun, Suo Province)

This paper is the result of a GIS-based analysis of the characteristics of the ancient Ouchi Basin. In the first half of the paper, we began with the characteristics of settlements and burial mounds, and examined the role of flood control works, etc. In the second half of the paper, based on the results of the first half, the actual conditions of the early activities of the Tatara clan (Ouchi clan), which expanded its power based in this area in the early medieval period, were elucidated based on various historical documents.