Tal-y-llyn Lake, ( cy, Llyn Mwyngil), also known as Talyllyn Lake and Llyn Myngul, is a large glacial

ribbon lake A ribbon lake is a long and deep, finger-shaped lake, usually found in a glacial trough. As such, a ribbon lake is one of a number of glacial landscapes, including arêtes, corries, rock lips, rock basins and terminal moraines. Such a lake's ...

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 Wales. It is formed by a post-glacial massive landslip damming up the lake within the glaciated valley. The

hamlet ''The Tragedy of Hamlet, Prince of Denmark'', often shortened to ''Hamlet'' (), is a tragedy written by William Shakespeare sometime between 1599 and 1601. It is Shakespeare's longest play, with 29,551 words. Set in Denmark, the play depicts ...

of Talyllyn lies at the west end of the lake.

Name

Tal-y-llyn Lake is named after the hamlet and historic parish of Tal-y-llyn. Tal-y-llyn itself is named after the lake and means 'the end of the lake' in

Welsh Welsh may refer to: Related to Wales * Welsh, referring or related to Wales * Welsh language, a Brittonic Celtic language spoken in Wales * Welsh people People * Welsh (surname) * Sometimes used as a synonym for the ancient Britons (Celtic peop ...

. Literally, therefore, ''Tal-y-llyn Lake'' has the circular meaning of 'the lake at the end of the lake'. The Welsh name ''Llyn Myngul'' or ''Llyn Mwyngil'' probably derives from ''mŵn'' ('neck') and ''cul'' ('narrow').

Geography

Tal-y-llyn Lake is situated to the north of

Machynlleth Machynlleth () is a market town, community and electoral ward in Powys, Wales and within the historic boundaries of Montgomeryshire. It is in the Dyfi Valley at the intersection of the A487 and the A489 roads. At the 2001 Census it had a popul ...

, at the foot of

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 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 ...

mountain range of

, Wales. The

River Dysynni , name_etymology = , image = Afon Dysynni & Morfa Gwyllt - geograph.org.uk - 194680.jpg , image_size = , image_caption = Dysynni estuary , map = , map_size = , map_caption ...

flows from the lake, through the village of

Abergynolwyn Abergynolwyn ( en, Mouth of the River with a Whirlpool) is a village in southern Gwynedd, Wales, located at the confluence of the Nant Gwernol and the Afon Dysynni. The population of the community which is named after the village of Llanfihan ...

, and discharges into the sea north of

Tywyn Tywyn (Welsh: ; in English often ), formerly spelled Towyn, is a town, community, and seaside resort on the Cardigan Bay coast of southern Gwynedd, Wales. It was previously in the historic county of Merionethshire. It is famous as the loc ...

. There is a route leading to the summit of Cadair Idris from near the lake and the

narrow gauge A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge narrower than standard . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with tighter curves, smaller structu ...

Talyllyn Railway The Talyllyn Railway ( cy, Rheilffordd Talyllyn) is a narrow gauge preserved railway in Wales running for from Tywyn on the Mid-Wales coast to Nant Gwernol near the village of Abergynolwyn. The line was opened in 1865Drummond 2015, page 17 ...

has its eastern terminus at nearby Nant Gwernol near the village of

, within the parish of Tal-y-llyn, the hamlet at the southern end of the lake.

Geology

The Tal-y-llyn Lake is located on a major fault line in Wales known as the Bala Fault, which extends from the

Cheshire Cheshire ( ) is a ceremonial and historic county in North West England, bordered by Wales to the west, Merseyside and Greater Manchester to the north, Derbyshire to the east, and Staffordshire and Shropshire to the south. Cheshire's county t ...

border to

on the

Cardigan Bay Cardigan Bay ( cy, Bae Ceredigion) is a large inlet of the Irish Sea, indenting the west coast of Wales between Bardsey Island, Gwynedd in the north, and Strumble Head, Pembrokeshire at its southern end. It is the largest bay in Wales. Geograp ...

coast. The depression caused by this was likely carved out and deepened during subsequent glaciation periods. Until 1962, Tal-y-llyn Lake was regarded as the most southerly example of a lake formed in a rock basin, with a terminal moraine on top of the bedrock through which the river had carved a channel. It is now understood that what appeared to be bedrock is in fact massive blocks of debris left by a large landslide. An enormous scar on the valley side to the left of the foot of the lake shows the source of the landslide, and another landslide a few miles downstream caused the River Dysynni to divert into the adjoining valley to the north. The upper end of the lake is becoming shallower as a result of the deposition of

alluvium Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluv ...

In fiction

The lake features, unnamed, in

The Railway Series ''The Railway Series'' is a series of British books about a railway known as the North Western Railway, located on the fictional Island of Sodor. There are 42 books in the series, the first published in May 1945 by the Rev. Wilbert Awdry. Twen ...

by Rev. W. Awdry and

Christopher Awdry Christopher Vere Awdry (born 2 July 1940) is an English author. He is best known for his contributions to ''The Railway Series'' of books featuring Thomas the Tank Engine, which was started by his late father, Wilbert Awdry (1911–1997). He has ...

, and the village of Talyllyn features as Skarloey. 1976

Newbery Medal The John Newbery Medal, frequently shortened to the Newbery, is a literary award given by the Association for Library Service to Children (ALSC), a division of the American Library Association (ALA), to the author of "the most distinguished contr ...

winner

Susan Cooper Susan Mary Cooper (born 23 May 1935) is an English author of children's books. She is best known for '' The Dark Is Rising'', a contemporary fantasy series set in England and Wales, which incorporates British mythology such as the Arthurian le ...

used the lake as a setting for the book ''

The Grey King ''The Grey King'' is a contemporary fantasy novel by Susan Cooper, published almost simultaneously by Chatto & Windus and Atheneum in 1975. It is the fourth of five books in her Arthurian fantasy series '' The Dark is Rising''. ''The Grey King ...

''. Within the lake six sleepers lie, wakened by Will Stanton playing the Harp of Gold. Afterward, they ride to the aid of the Light in the book ''Silver on the Tree''.. Retrieved 26 April 2016

References

{{DEFAULTSORT:Tal-Y-Llyn Lake Llanfihangel-y-Pennant Lakes of Gwynedd Lakes of Snowdonia Tourism in Gwynedd Tourism in Snowdonia Landslide-dammed lakes