|Location Map ( geo)|
|Distance:||1.5 miles (2.4 km)|
|Old route now:||B6357, B7201|
|Route outline (key)|
The B720 is a short link road in eastern Dumfriesshire.
After going round the side of a low hill the road descends into the valley of the River Esk to end at a T-junction on the A7.
Before construction of the A7 Canonbie bypass in 1984 the B720 continued ahead to meet that road just west of the Gilnockie Bridge over the River Esk. On completion of the bypass our road was extended south along the old road. After crossing the river it bore right then followed the valley to Canonbie, where it crossed the river again in a multiplex with the B6357. After running through the village centre it continued downstream to reach the southern end of the bypass just north of the English border.
Only 18 months after the bypass was opened a landslip caused part of the new section of the B720 just south of Gilnockie Bridge to fall into the Esk. In 1987 the road was closed permanently to through traffic (and is now a footpath at the landslip site), cutting the B720 back to its present eastern end. That part of our road south of Canonbie retained Class II status with a single digit added to its number and is now the B7201.