A mammoth trip across the North Pennines, visiting Hadrian's Wall, the north-west frontier of the Roman empire for nearly 300 years.
You will be closest to the route of the wall between Brampton at approx 42Km/26 miles and Gilsland at approx 50Km/31 miles; look out to the right hand side of the road to see the ruins.
This is a long, testing, and lumpy ride; save something in your legs for the final climb at Alston.