The R755 in Clara Vale, looking north-west from Furnace Bridge
The southern end of the R755 is at Corballis, on the outskirts of Rathdrum, County Wicklow, where it forms a T junction with the R752. The road heads north and when it has cleared the town it passes through the scenic Vale of Clara, paralleling the Avonmore river, although not very close to it. Here it passes through native broadleaf forest, a relatively uncommon experience in Ireland.
After 11 km the R755 reaches Laragh, a small village where several Wicklow upland roads meet, a busy junction for tourist traffic in the summer. The road heads off north-east through more open country and reaches Annamoe after 4.5 km. Here it crosses the Avonmore river on a 1990 arched bridge built in a somewhat similar style as the original swept away by Hurricane Charlie in 1986.
After a further 5 km the R755 reaches Roundwood, reputed to be Ireland's highest village. It continues north-east above 250 m on the plateau for 10 km, a section prone to snow in winter, before swinging east and losing 200 m over a 3 km descent to reach Kilmacanogue, where it is connected to the N11 by a grade-separated junction.
