start north of boroughbridge on b6265 (great north road) 0.18 mile south of kirby hill roundabout 174 yards south of lamp post no. rr2/8 at the second gulley grate 71 yards north of farm entrance. proceed north to kirby hill roundabout (0.18 m) where left 1st exit on to a168 southbound. travel south on a168 via roecliffe road roundabout (1.84 m) take 2nd exit to boroughbridge south roundabout (2.60 m) take 2nd exit to walshford roundabout (10.16 m) take 3rd exit to bridge inn roundabout (10.54 m) take 1st exit to kirk deighton roundabout (12.81 m) where encircle roundabout to retrace on a168 northbound. travel north on a168 via bridge inn roundabout (15.13 m) take 2nd exit to walshford roundabout (15.49 m) take 1st exit to boroughbridge south roundabout (23.00 m) take 2nd exit to roecliffe road roundabout (23.77 m) to finish on a168 0.46 mile south of kirby hill roundabout 79 yards south of bridge over a168 and 17.8 yards north of ‘parking mile’ sign at paint mark in road (paint mark also on adjacent fence post) (25.00 m).