Celyn Brithion

Mae Foel Benddin yn gopa mynydd a geir yn y ddwy Aran tua kilometr i'r gogledd-orllewin o Ddinas Mawddwy; cyfeiriad grid SH853165. Uchder cymharol, neu ”amlygrwydd” y copa, ydy 443 metr: dyma'r uchder mae'r copa'n codi uwchlaw'r mynydd agosaf.

Maesglase is a mountain in Snowdonia, North Wales, situated approximately four miles to the south-west of Aran Fawddwy. It is the highest of the Dyfi Hills. It can be reached by an easy but steep walk through the forestry from Dinas Mawddwy or directly from the bwlch on the A470. Ascending Maesglase provides an opportunity to climb several other nearby peaks including Maen-Du, Craig Rhiw-erch, Wau

Foel Dinas is a mountain in Wales. It is the north-westernmost peak of the Dyfi Hills and sits above the town of Dinas Mawddwy. In the 1870s its eastern and northern slopes were planted with trees by Sir Edmund Buckley, the lord of the manor of Mawddwy. On the northern flank is Llyn Foel Dinas, a lake which was dammed to form a reservoir, providing the water supply to Buckley's manor house in Dina