The B7085 crosses the Machars Peninsula in Galloway. The road was for many years the southern end of the A714 but was downgraded in the 1970s.
The route starts just north of Braehead where the A714 turns into the A746. Ours is the third road at this triple point and we head southwest. The road is largely flat as it weaves its way between the hills but presently we start to climb and enter Whauphill. The B7052 crosses in the village centre.
Back in open fields we continue in the same direction across the undulating terrain. We pass a few scattered buildings. Presently the road runs anticlockwise around the bottom of Drumtroddan Hill and then enters a wood. Here there's a sharp right-hand bend as the B7021 comes in from the left.
The road zigzags past the wood for half a mile or so, after which the road bears right and straightens out, descending towards Port William and the sea. We run along the High Street, then bear right to end at a roundabout on the A747 on the edge of the harbour.