Its eastern slopes are drained by the Afon Tafolog, a tributary of Afon Roe that flows through the village of Rowen before joining the River Conwy. It is also the final top on Carnedd Llewelyn's long northern spur.
The mountain's eastern sides are drained by the Afon Tafolog, a tributary of Afon Roe that passes through the village of Rowen before emptying into the River Conwy. This peak is also the final summit on Carnedd Llewelyn's northern branch.