Craig Cwm Amarch is not synonymous with Craig y Cau but names the headwall of Cwm Amarch on

Cadair Idris Cadair Idris or Cader Idris is a mountain in the Meirionnydd area of Gwynedd, Wales. It lies at the southern end of the Snowdonia National Park near the town of Dolgellau. The peak, which is one of the most popular in Wales for walkers and hiker ...

in the

Snowdonia National Park Snowdonia or Eryri (), is a mountainous region in northwestern Wales and a national park of in area. It was the first to be designated of the three national parks in Wales, in 1951. Name and extent It was a commonly held belief that the nam ...

, in

Gwynedd Gwynedd (; ) is a county and preserved county (latter with differing boundaries; includes the Isle of Anglesey) in the north-west of Wales. It shares borders with Powys, Conwy County Borough, Denbighshire, Anglesey over the Menai Strait, and C ...

, north-west

Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...

. There seems to be some confusion over naming by people who are not local. 'Craig Cwm Amarch' refers to the crags heading Cwm Amarch, which impinge from the south into the ridge of Mynydd Pencoed, a spur of the

range. The eastern end of Mynydd Pencoed overlooking Llyn Cau is known as Craig y Cau. (Daear Fawr, the ‘large ground’, may refer to an area of the Pencoed ridge. Mountain slopes in Wales are commonly named after the farms to whom the grazing belonged, hence Mynydd Pencoed is named after the farm (its buildings now derelict) at its western foot.

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{{coord, 52.6893, N, 3.9130, W, type:landmark_region:GB, display=title Llanfihangel-y-Pennant Mountains and hills of Gwynedd Mountains and hills of Snowdonia Hewitts of Wales Nuttalls