IIArch at Maes-y-Bryner Isaf Located 1km SW of Nannau hall at the boundary of the Llanelltyd community with the Brithdir and Llanfachreth community. The archis on the Llanelltyd side of an unnamed stream and spans a metalled road
IIAwelon Set back slightly at the junction of the A 496 and the A 470 onthe N side of the old Barmouth road; raised up on a rubble-walled terrace reached by slate steps.
IIBarn at Cae Hir Located immediately to the E of Cae Hir farmhouse and at right-angles with it.
IIBarn at Cymer Abbey Situated immediately to the E of Cymer Abbey ruins in a farmyard.
IIBorthwnog Hall Hotel Set back from the road in its own partly-walled and railed grounds with commanding views over the Mawddach estuary.
IIBryn Located immediately to the S of St. Illtyd's parish church andabutting its churchyard revetment wall; accessed via tracks to therear of the church, leading from the A 470.
IIByre at Cymer Abbey Located immediately to the SE of Cymer Abbey ruins at the southern end of the farmyard and immediately S of the main barn.
IIByre Range at Cae Hir Located immediately NW of Cae Hir farmhouse and oriented E-Wagainst a gentle incline.
IICae Hir Farmhouse (including attached Byre) Located approximately 2km NE of Bontddu on an upland site 250m W of Hirgwm; accessed via a short track running SW of a narrow metalled road leading up from Bontddu.
IICae-Mab-Seifion Situated 1.5km N of Taicynhaeaf on a high, sloping site above the Afon Cwm-Mynach; accessed via a long track leading NE off a metalled lane running N from the main road at Taicynhaeaf.
IICesailgwm-Bach Situated 1.75km N of Taicynhaeaf in a hollow near the Nant Cesailgwm; accessed via a long track leading NE off a metalled lane running N from the main road at Taicynhaeaf. Situated in its own farmyar
ICymer Abbey Situated in the lap of the vale near the Afon Mawddach and on the opposite bank of the river to Llanelltyd village; accessed via a lane leading NE off the main road.
IICymmer Castle Situated on a hill 2.5 km N of Dolgellau with commanding views towards Cader Idris and the Mawddach estuary; accessed across fields from a metalled lane leading E from Llanelltyd bridge ultimately to
IIFfridd-Ddu Located approximately 2km NW of Bontddu in an upland situation on the banks of the Hirgwm and immediately N of the Pont Ffridd-ddu; accessed via a track leading NW from a metalled lane running NW from
IIGarth-Bleiddyn Situated 2.5 Km NE of Dolgellau at the eastern extremity of Llanelltyd community. Immediately to the S of a metalled lane leading from Llanelltyd bridge ultimately to Llanfachreth; accessed via a shor
IIMaestryfer At the NW extremity of Taicynhaeaf, on an elevated site above the Afon-Cwm-Mynach; accessed via a short track leading NW at a chapel off a metalled road running N from Taicynhaeaf.
IIMilestone Located at the junction of 2 paths some 150m uphill from the end of the metalled road from Bontddu.
II*Pont Llanelltyd Spanning the Afon Mawddach 1km SE of Llanelltyd; originally serving the old Dolgellau-Barmouth road and now a foot bridge.
IIPont Wnin Spanning the Afon Wnin on a bend in the centre of Llanelltyd village and formerly the main road bridge; immediately N of the present, modern road bridge.
IITan Llan Situated at the eastern extremity of Llanelltyd village some 50mSE of the main road; sited against the gentle slope of the hill and accessed via a metalled drive leading E from the church lane.
II*Ty Fanner Located immediately to the W of Cymer Abbey ruins; accessed via a lane running NE from the main road.
IITyn Twll Located at the eastern extremity of Bontddu against a slope overlooking the Mawddach estuary, immediately below the level of the road; accessed via a metalled track leading S off the mainroad.
IITyn-y-Celyn Below the A 496 to W of the junction with the A 470; set back from the by-road that runs through the village; rubble boundary wall with ball finials to gated entry at L. Rubble revetment wall to hill
IITyn-y-Llwyn Situated approximately 2.5km N of Llanelltyd village on a high sloping site to the W of the Cwm-yr-Wnin; accessed via a long, rough track leading from the termination point off a metalled road running
IITynllan Located immediately to the S of St. Illtyd's parish church andabutting its churchyard revetment wall; accessed via tracks to therear of the church, leading from the A 470.
IIY Refael Located on a slight rise in the village centre, immediately to the E of the Halfway House Hotel.