The B6453 is a relatively short road in Roxburghshire.
The road starts at Carilawmoor, east of Selkirk, on the A699. It heads southeast with the road becoming more winding as it reaches Midlem, the only place of any size en route. We descend the main street and zigzag to reenter open country. After crossing the Midlem Burn the road climbs out of the valley and then continues straight to end on the B6359 to the north of Lilliesleaf. This junction is a crossroads but B6359 traffic has priority and the other two directions must give way.
The B6453 does not appear at all on the 1932 edition of the Ten-Mile Road Map of Great Britain, showing that the route was first classified in the mid-1930s. The 1939 and 1944 editions of the map show the road extending further north, ending on the A7 near Lindean. However, the 1946 edition of the Ten Mile Map shows the current route of the road, putting an end date on the northern section of the immediate post-war era. It is not known why this section of the road was downgraded; although it is narrow it is no narrower than some of the middle section of the B6453's present route.