Geosite List Home Geosite The Koza-kaido Pass in Samoto Valley The Koza-kaido Pass in Samoto Valley This pass had been used as the main transportation route for crossing over the Kozakaidou mountain pass. Stone pavements and other stone constructions are left on the path that leads from the ravine of the Samoto River. Map The Koza-kaido Pass in Samoto Valley 33.5833062,135.6708527,14 See in the map app