Looking west along the R586 in the townland of Derrynagree East
The R586 is a the "short way round" for the N71 between Bandon and Bantry in County Cork. Indeed, it was originally a T road before the introduction of National roads in Ireland.
The eastern section is the former N71, which now bypasses Bandon. After passing through the town centre it runs due west, closely following the River Bandon. It joins up with the N71 again at a TOTSO in Keilnascarta, 5.5 km south of Bantry, which picks up the mainline.