Heddon-on-the-Wall to Chollerford
With not much in the way of gradients this shouldn't be too taxing a section along mostly the edges of arable farmland. It is all World Heritage Site but with a distinct absence of Wall - or so you might think. The trick is to look for a ditch, impressive in places, on the north side of the road, and the occasional ridge in the fields to the south. Somewhere in the middle is Hadrian's Wall, and if you've read the guidebook you'll realise that it lies under the modern B6318. Today it is dubbed the military road, not on account of the Romans, rather General Wade, builder of military supply roads in the 18th century in response to the Jacobite rebellion. In a few places, however, look up towards the road and you might spot the occasional Roman stone in the embankment, a pretty good foundation.