Abstract
Nakasen-Dou-Kisoji was gone on equipping for a trunk line to national land formation in stead of Tosan road.
With the changes of the means of transportation (people→oxen and horses→railway and national road→expressway and Shinkansen), the route was obliged to alter.
In Edo period, four connection roads which linked Kiso road (Kiso valley) with Tosan road (Ina valley) of a north-south principal road, it were improved as a road which oxen and horses were able to pass, and a network of roads was established. And it promoted an exchange of goods and people between Kiso and Ina area. These four roads crossed Gonbei, Usikubi, Seinaiji, and Oodaira pass from the north.
This paper describes about the process of building up Gonbei pass road.
