su407985 start on the a415 80 yards to the north of the 30 mph de-restriction sign after the exit from kingston bagpuize 85 yards before the roundabout junction with the a420 0000 su407986 proceed to the roundabout, turn left onto the a420 and go westwards. 0.06 su300952 go straight on at the stamford roundabout with the a417 7.651 su 295945 continue straight on along a420 at the farringdon roundabout 8.149 su 254908 continue to watchfield roundabout where turn and re-trace 11.909 su295946 straight on at the faringdon roundabout 15.731 su300953 straight on at stanford road roundabout. 16.212 su407986 continue on a420 to the kingston bagpuize roundabout at the junction with the a415 circle the roundabout 23.873 su 389980 re-trace to the 1st lay-by before southmoor-longworth crossroads to finish 8 yards west of and beyond second drain and 34 yards east and short of the flight of steps at the centre of the lay-by. 25.miles