Cefn Llechid
Encyclopedia
Cefn Llechid is a small area of unenclosed land in the Brecon Beacons National Park east of Sennybridge
in the county of Powys
, Wales
. It lies within Fforest Fawr Geopark
. Its plateau-like summit surface peaks at 400m where it is marked by a trig point
. A couple of small bodies of water lie in a hollow on the plateau. The hill is owned and managed by the Brecon Beacons National Park Authority.
to its east and Fforest Fach
to its west, the hill is formed from sandstones and mudstones of the St. Maughans Formation of the Old Red Sandstone
laid down during the Devonian period. Ths sandstones form positive if subdued relief features in the landscape. A number of geological faults run through the area forming a part of the Swansea Fault
, itself a part of the Welsh Borderland Fault System
.
A legacy of the ice which over-ran the area during the last ice age is the glacial till which covers the lower flanks of Cefn Llechid.
the hill is open access for walkers. Additional access is provided for horseriders and mountain-bikers by a couple of bridleways which link it with the A4215 road to the south and a couple of minor roads to the north.
Sennybridge
Sennybridge is a village in Powys, Mid Wales, situated some from Cardiff and from Swansea. It lies west of Brecon on the A40 trunk road to Llandovery, at the point where the River Senni flows into the Usk...
in the county of Powys
Powys
Powys is a local-government county and preserved county in Wales.-Geography:Powys covers the historic counties of Montgomeryshire and Radnorshire, most of Brecknockshire , and a small part of Denbighshire — an area of 5,179 km², making it the largest county in Wales by land area.It is...
, Wales
Wales
Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...
. It lies within Fforest Fawr Geopark
Fforest Fawr Geopark
Fforest Fawr Geopark was the first Geopark to be designated in Wales having gained membership of both the European Geoparks Network and the UNESCO-assisted Global Network of National Geoparks in October 2005. The Geopark aims to promote and support sustainable tourism and other opportunities to...
. Its plateau-like summit surface peaks at 400m where it is marked by a trig point
Trig point
A triangulation station, also known as a triangulation pillar, trigonometrical station, trigonometrical point, trig station, trig beacon or trig point, and sometimes informally as a trig, is a fixed surveying station, used in geodetic surveying and other surveying projects in its vicinity...
. A couple of small bodies of water lie in a hollow on the plateau. The hill is owned and managed by the Brecon Beacons National Park Authority.
Geology
Like Mynydd IlltudMynydd Illtud
Mynydd Illtud is an extensive area of common land three miles south-east of Brecon in the Brecon Beacons National Park in the county of Powys, Wales. The common is an undulating plateau lying between above sea level...
to its east and Fforest Fach
Fforest Fach
Fforest Fach is a small area of unenclosed land within Brecon Beacons National Park southwest of Sennybridge in the county of Powys, Wales. Translating from Welsh as 'little forest', it is named in opposition to the much larger area of unenclosed land to the south which is known as Fforest Fawr or...
to its west, the hill is formed from sandstones and mudstones of the St. Maughans Formation of the Old Red Sandstone
Old Red Sandstone
The Old Red Sandstone is a British rock formation of considerable importance to early paleontology. For convenience the short version of the term, 'ORS' is often used in literature on the subject.-Sedimentology:...
laid down during the Devonian period. Ths sandstones form positive if subdued relief features in the landscape. A number of geological faults run through the area forming a part of the Swansea Fault
Cribarth Disturbance
The Cribarth Disturbance is a geological structure forming a lineament which stretches across south Wales from Swansea up the Swansea Valley then northeastwards to Brecon and beyond. It comprises both a series of faults and associated folds which were active during the mountain-building period...
, itself a part of the Welsh Borderland Fault System
Welsh Borderland Fault System
The Welsh Borderland Fault System is a zone of faulting and associated folding which runs northeastwards through Wales from Pembrokeshire through Carmarthenshire and Powys into Shropshire in England...
.
A legacy of the ice which over-ran the area during the last ice age is the glacial till which covers the lower flanks of Cefn Llechid.
Access
By virtue of it being registered common landCommon land
Common land is land owned collectively or by one person, but over which other people have certain traditional rights, such as to allow their livestock to graze upon it, to collect firewood, or to cut turf for fuel...
the hill is open access for walkers. Additional access is provided for horseriders and mountain-bikers by a couple of bridleways which link it with the A4215 road to the south and a couple of minor roads to the north.