Moelwyn Mawr

Moelwyn Mawr over Cwm Croesor

Height: 770m (2,526ft)

Prominence: 385m (1,263ft)

Region: Snowdonia - The Moelwyns

Classifications: Nuttall, Hewitt, Marilyn

Summit feature: Trig pillar

Times climbed: 1

Related trip report: 
Cnicht & The Moelwyns - 18/09/2017

The trig pillar marks an extensive view

Moelwyn Mawr forms part of the Moelwynion. It has a high reservoir, Llyn Stwlan, which is part of the Ffestiniog Power Station pumped-storage hydroelectric power plant in Tanygrisiau.

In 1990, Moelwyn Mawr was designated a Site of Special Scientific Interest of national scientific importance. The glaciated landscape of the mountain provides fine examples of two specific Pleistocene features. On the north-east flank of the mountain is a terrain of patterned ground, consisting of small-scale vegetated stripes. On the west side, a debris tongue formed by a rock glacier extends into Cwm Croesor.

Moelwyn Mawr overlooks the Vale of Ffestiniog and affords spectacular views in all directions.

Return to Snowdonia – The Moelwyns