A blue sign with a diagram showing a branch off the road ahead and the following text.
Forward destinations: Newcastle; Durham.
Exit destinations: Darlington; Bishop Auckland; Corbridge; A68.
Junction number: 58.
Bishop Auckland isn't the only place around here with an ecclesiastical title. Just west of this junction is a village called - I swear this is true - Archdeacon Newton.
The A68 is also bound for Edinburgh, by the way, taking a more inland route than the A1.