 There are traffic-light controlled junctions with the A32 (to Omagh) and the A46 (to Belleek).On the western edge of the town the A4 has a roundabout with the A509 (to Derrylin), and one mile later there is a T-junction with the A32 (to Florencecourt).West of Enniskillen town, the A4 passes through the hamlet of Letterbreen and the village of Belcoo, where it then reaches the border with the Republic of Ireland (at a bridge over Lough MacNean into Blacklion) and continues westward toward Sligo as the N16.