|Length:||2.3 miles (3.7 km)|
|Meets:||A814, B833, A814|
|Former Number(s):||A814, B833|
|Route outline (key)|
The B872 follows the old A814 route through Garelochhead. The town was bypassed as part of the military's road scheme to provide access from the A82 to Faslane and Coulport bases, whilst he rest of this new road has been given the A817 number.
We start at a roundabout outside the Faslane Base to the south of the village, quickly returning to the coast and so follow the shore line into Garelochhead. The road then leaves the coast, passes through the small village centre and reaches the B833 at a mini roundabout. For a few years the B872 ended here and the B833 continued along the pre-bypass A814 but now the reverse is true. The road climbs steeply out of the village and passes through a wood to reach the Whistlefield viewpoint, after which we cross the West Highland Line to end at a roundabout back on the A814. The unclassified road to the left is the military road to Coulport mentioned above.