Crug Hywel is an

Iron Age The Iron Age is the final epoch of the three-age division of the prehistory and protohistory of humanity. It was preceded by the Stone Age (Paleolithic, Mesolithic, Neolithic) and the Bronze Age (Chalcolithic). The concept has been mostly appl ...

Celtic Celtic, Celtics or Keltic may refer to: Language and ethnicity *pertaining to Celts, a collection of Indo-European peoples in Europe and Anatolia **Celts (modern) *Celtic languages **Proto-Celtic language * Celtic music *Celtic nations Sports Fo ...

hillfort A hillfort is a type of earthwork used as a fortified refuge or defended settlement, located to exploit a rise in elevation for defensive advantage. They are typically European and of the Bronze Age or Iron Age. Some were used in the post-Roma ...

, with a clearly visible earth and stone ditch and rampart. Crug Hywel is approached by a couple of public footpaths across farmland from

Crickhowell Crickhowell (; cy, Crucywel , non-standard spelling ') is a town and community in southeastern Powys, Wales, near Abergavenny, and is in the historic county of Brecknockshire. Location The town lies on the River Usk, on the southern edge ...

and

Llanbedr Llanbedr () is a village and community south of Harlech. Administratively, it lies in the Ardudwy area, formerly Meirionnydd, of the county of Gwynedd, Wales. History Ancient monuments at Llanbedr include Neolithic standing stones; the St ...

and visited by the

Beacons Way The Beacons Way (Welsh: Ffordd y Bannau) is a waymarked long distance footpath in the Brecon Beacons National Park, Wales. It is a linear route which runs for east to west through the National Park, and passes many of the most important landmar ...

. It lies within an area designated as

open country "Open Country" is a designation used for some UK access land. It was first defined under the National Parks and Access to the Countryside Act 1949 (and extended by the Countryside Act 1968), and was land over which an appropriate access agreeme ...

over which the public have the right to roam. The name is sometimes given to the flat-topped hill itself, which is also called Table Mountain in

English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...

). Located at the southern edge of the Black Mountains in south-east

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 ...

, it rises to 451 m above sea level, from the southern flank of

Pen Cerrig-calch Pen Cerrig-calch is a subsidiary summit of Waun Fach in the Black Mountains in the Brecon Beacons National Park in southern Powys, Wales. Its summit, at a height of 701 m (2,300 ft), is marked by a trig point. The peak sits high above ...

(701 m), and overlooks the town of Crickhowell, whose name derives from Crug Hywel. The Welsh name Mynydd y Begwn is also used of this summit. As a result, it has been suggested that the name Crug Hywel (which means 'Hywel's mound') may originally have referred to the castle mound in Crickhowell.

Geology

The hill is formed from

Old Red Sandstone The Old Red Sandstone is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the northeastern seaboard of North America. It also exte ...

originating in the

Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...

period Period may refer to: Common uses * Era, a length or span of time * Full stop (or period), a punctuation mark Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (or rhetorical period), a concept ...

, specifically the sandstones of the Brownstones Formation, topped by rocks of the Quartz Conglomerate Group. The whole mass of rocks forming this outlier of Pen Cerrig-calch can readily be seen to dip more sharply to the south than nearby strata and is considered to be an excellent example of a translational slide.Barclay, W.J. & Wilby, P.R. 2003,''Geology of the Talgarth district'', BGS 1:50K map geological sheet explanation

References

External links

Aerial photograph of Crug Hywel
(Casglu'r Tlysau)
3D model of Crug Hywel hillfort
Black Mountains, Wales Archaeological sites in Powys Hillforts in Powys Mountains and hills of Powys Archaeological sites in the Brecon Beacons National Park Hillforts in the Brecon Beacons National Park Mountains and hills of the Brecon Beacons National Park {{Powys-geo-stub

Geology

See also

References

External links