Definition of Ceiswyn. Meaning of Ceiswyn. Synonyms of Ceiswyn

- The Ceiswyn Formation (also known as the Ceiswyn Beds) is an Ordovician lithostratigraphic group (a sequence of rock strata) in Mid Wales. The rock of...
- The Nant Ceiswyn (sometimes known as the Afon Ceiswyn) is a small river in Mid Wales. It flows from the northern flank of Mynydd Dolgoed down to Pont Cymerau...
- Mynydd Ceiswyn is a mountain in Wales. It is the peak south of Waun-oer in the Dyfi Hills. On the east side of the mountain is the valley of the Nant...
- rocks of Ordovician age. They comprise the mudstones and siltstones of the Ceiswyn Formation which form much of the southern part of the mountain, together...
- (L) Afon Llyfnant (L) Afon Dulas (R) (North Dulas) Afon Deri (R) Nant Ceiswyn (R) Afon Dulas (L) (South Dulas) Afon Twymyn (L) Afon Rhiwsaeson (R) Afon...
- Formation Type Formation Underlies Broad Vein Mudstone Formation Overlies Ceiswyn Formation Thickness Typically 20 metres (66 ft) to 30 metres (98 ft), up...
- down to Pont Cymerau, north-east of Aberllefenni. Here it joins the Nant Ceiswyn to form the Afon Dulas that flows south to the Afon Dyfi. There was an...
- gr****y plateau. It is connected to Cribin Fawr to the east and Mynydd Ceiswyn to the south. To the north lies Cadair Idris, while Tarren y Gesail lies...
- Merioneth (now Gwynedd), North Wales, on the eastern side of the isolated Cwm Ceiswyn. It worked the Narrow Vein, the highest-quality slate vein in the Abercorris...
- Pugh of Mathafarn and his wife Margaret Lloyd, daughter of John Lloyd of Ceiswyn and Aberllefenni, Merionethshire. He was admitted at Inner Temple in 1690...