Bryn Arw
| Bryn Arw | |||
| Monmouthshire | |||
|---|---|---|---|
 The summit ridge of Bryn Arw | |||
| Range: | Black Mountains | ||
| Summit: | 1,260 ft SO3036119746 51°52’17"N, 3°-0’42"W | ||
Bryn Arw is a hill in the Black Mountains of the Brecon Beacons National Park in Monmouthshire. It lies two miles north of the town of Abergavenny and a mile and a half west of the village of Llanvihangel Crucorney. Its summit at 1,260 feet above sea level is the more northerly of two tops which lie on the crest of a slightly arcuate north-south ridge which drops away to the south at first gently and then sharply. The hill is isolated from the main mass of the range by the valleys of Cwm Coed-y-cerig to the north and by Cwm Brynarw to the west.[1] It is a Marilyn.
Geology
The hill is composed from mudstones and sandstones of the Senni Beds Formation of the Old Red Sandstone laid down during the Devonian period. A number of small fossil landslips can be seen around its flanks, notably at its north-western and south-western points where the slopes are steepest.[2]
Access
The hill is designated as open country so freely accessible to walkers. Public footpaths run around its base for all but a short section of its western flank whilst further paths link from the nearby road network.