Forts, castles and camps

Send us Fan MailWe are starting at Bewcastle Fort around 10 kilometres north of Hadrians Wall – well that’s as the crow flies. But then we will be returning the Wall and some of its most dramatic landscapes and archaeology. From a ruined medieval Thirlwall Castle near Greenhead village – built completely of re-purposed Roman stones – we climb up onto the escarpment of the Whin Sill – 295 million years ago it was an intrusion of molten rock that then solidified into a hard rock called dolerite. It resisted erosion by 1000m thick ice sheets and stands proud as one of the rocky icons of the northern landscape.