The Narrow Vein Mudstone Formation is an Ordovician lithostratigraphic group in Mid Wales. The rock of the formation is silty, homogeneous or finely-laminated mudstone. It generally a medium blue colo
The Aberllefenni Quarry showing the main working of the Narrow Vein
Mawddwy Railway
Videos
The Mawddwy Railway was a rural line in the Dyfi Valley in mid-Wales that connected Dinas Mawddwy with a junction at Cemmaes Road railway station on the Newtown and Machynlleth Railway section of the
Narrow Vein Mudstone Formation
…Gartheiniog quarry, also connected to the Hendre-Ddu Tramway Minllyn quarry connected to the Mawddwy Railway…
The entrance to Dinas Mawddwy station, looking south. The building on the right is the original station