IIStores Buildings at Bardsey Lighthouse A group of 3 buildings close to the 'New Keepers' Quarters, and built against the S boundary wall of the compound.
IISyntir Situated on steep slope above Porth Neigwl, some 500m down footpath from Penygroes in Rhiw village.
IITai Bwlch Situated on SE slope of Mynydd Anelog, approached by footpath running S from Ty Tanyfron.
IITalcen-y-foel Situated in isolated position approached by grass track some 450m NNW of Capel Uwchmynydd.
IITanyffordd (aka Tanybwlch) Situated below and to E of Rhiw to Botwnnog road some 500m N of Rhiw church.
IITanyfron Situated at Anelog on E side of road some 600m N of Ty'n Anelog farm.
IITanygarn Situated some 120m down track to Gwern-saer, that runs E off road some 350m NNE of Rhiw church.
IITanyrardd Situated on common land NW of Rhiw church, on N side of track from Gwern-saer to Bryn-ffynnon.