|Achill Island Road|
|Distance:||30 km (18.6 miles)|
|Now part of:||R391|
This route crossed from the Irish mainland to Achill Island and then crossed the island as far as Dooagh, with a spur heading north to Doogort. The modern R391 does essentially the same job, but extends to the far western end of the road and excludes the spur which is now unclassified.