Moel y Cerrig Duon is a subsidiary summit of

Esgeiriau Gwynion Esgeiriau Gwynion ( Welsh for "white shanks") is a mountain in north Wales. It is the smallest of the three Marilyns that form the Aran range, the others being Aran Fawddwy and Glasgwm. The peak is situated to the east of Aran Fawddw ...

Gwynedd Gwynedd () is a county in the north-west of Wales. It borders Anglesey across the Menai Strait to the north, Conwy, Denbighshire, and Powys to the east, Ceredigion over the Dyfi estuary to the south, and the Irish Sea to the west. The ci ...

in north

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

. Moel y Cerrig Duon tops the eastern end of a long peat bog plateau along with Llechwedd Du. Its summit has a conical shape, rising suddenly from the bog. The summit itself is grassy, marked by a small cairn and a stake. To the north-east is

Foel y Geifr Foel y Geifr is a subsidiary summit of Esgeiriau Gwynion, and included in a group of hills known as the Hirnantau. These hills rise from the south east shores of Bala Lake. Confusion arises when trying to establish to which mountain range th ...

, to the east

Cyrniau Nod Cyrniau Nod is a mountain summit in north east Wales. It is a former Marilyn, the Marilyn summit now being the nearby Foel Cedig. Its summit has the Snowdonia National Park Snowdonia, or Eryri (), is a mountainous region and Nation ...

and to the west is Llechwedd Du,

, and

Aran Fawddwy Aran Fawddwy is a mountain in southern Snowdonia, Wales, United Kingdom. It is the highest point (List of counties of England and Wales in 1964 by highest point, county top) of the historic county of Merionethshire (for local government ...

. Its otherwise unremarkable SW top Foel y Groes(582m) forms the watershed between the

Dee Dee or DEE may refer to: People Surname * Dee, an alternate spelling of the Welsh surname Day * Dee, a romanization of several Chinese surnames, including: ** Those listed at Di (surname) ** Some Hokkien pronunciations of the surname Li () ...

Severn The River Severn (, ), at long, is the longest river in Great Britain. It is also the river with the most voluminous flow of water by far in all of England and Wales, with an average flow rate of at Apperley, Gloucestershire. It rises in t ...

and

Dyfi Democratic Youth Federation of India (DYFI) is a youth organisation in India. It was founded in its inaugural conference held from 1–3 November 1980 at Shaheed Kartar Singh Saraba village in Ludhiana, Punjab. DYFI was formed as an independent ...

catchments. The Aran range continues south from Moel y Cerrig Duon forming a large area of high moorland to the west of

Lake Vyrnwy Lake Vyrnwy (, or ') is a reservoir in Powys, Wales, built in the 1880s for Liverpool Corporation Waterworks to supply Liverpool with fresh water. It flooded the head of the River Vyrnwy, Vyrnwy () valley and submerged the village of Llanwddyn ...

, crowned by Mynydd Coch. To the north it continues to

, the eastern outpost of the

range.Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. .

References

Llanuwchllyn Llanwddyn Mountains and hills of Gwynedd Mountains and hills of Powys Mountains and hills of Snowdonia Hewitts of Wales Nuttalls {{Gwynedd-geo-stub