From Dunlavin it heads northeast, intersecting the N81 national secondary road near the village of Hollywood. It then heads southeast, rising through the West Wicklow Mountains to the Wicklow Gap, the highest point on the road at 470m, before descending through the Glandasan Valley. In this valley it passes through old mine-works to its junction with the R757 in the outskirts of Glendalough and continues for a further 2 km to Laragh, where it terminates at a junction with the R755 and the Military Road.