A Roman road that ran from Yorkshire to Scotland. This crossed the Tees at Piercebridge, County Durham, heading north to Lanchester area and cut across to Corbridge, then northwards again through Hadrian's Wall to the northwest, passing the marching camps at Fourlaws, Featherwood, Chew Green and near the forts at West Woodburn and High Rochester. It was used as a later boundary and drove road. In part it is still overlain by many roads such as the main A1(M) and A68 roads of today. It is thought to have been constructed/used by the 80s AD. This had its own fortlet at Chew Green for repair and pulling wagons.