Chwarel y Fan

Capel-y-ffin (Welsh for 'chapel of the boundary') is a hamlet near the English-Welsh border, a couple of miles north of Llanthony in Powys, Wales. It lies within the Black Mountains and within the Brecon Beacons National Park. The nearest town is Hay-on-Wye, some 8 miles (13 km) to the northwest.

Llanthony Abbey is a former Anglican monastic institution founded in 1869 by Joseph Leycester Lyne (Father Ignatius), in the Welsh village of Capel-y-ffin, a few miles from the medieval Llanthony Priory. It survived until 1908, after which it was the home of artist Eric Gill. It is now holiday accommodation. It was also known as Llanthony Tertia - following on from the nearby original medieval Llanthony Priory, and its Gloucestershire offshoot Llanthony Secunda - or New Llanthony Abbey. The surviving buildings are now referred to as Capel-y-ffin Monastery.

The Hatterrall Ridge (sometimes spelled Hatterall) is a ridge in the Black Mountains forming the border between Powys and Monmouthshire in Wales and Herefordshire in England. The ridge is about 10 miles (16 km) long, and is followed by the Offa's Dyke Path. On the west side of the ridge is the Vale of Ewyas, and on the east side is the Olchon Valley and Black Hill. The western side of the ridge falls within the Brecon Beacons National Park. Much of the northern part of the ridge is a broad whaleback, but it narrows down considerably further south, and especially near to Llanthony Priory in the Vale of Ewyas to the west of the mountain. There is a large and prominent landslip on the eastern side of the mountain here, known as Black Darren, where a large slice of the rocks has fallen away from the main mass of the hill. The ridge to the southwest ends abruptly at the sheer cliff known as the Darren below which is a considerable landslide area extending south to the hamlet of Cwmyoy with its misshapen church.

The Black Mountains (Welsh: Y Mynydd Du or sometimes Y Mynyddoedd Duon) are a group of hills spread across parts of Powys and Monmouthshire in southeast Wales, and extending across the England–Wales border into Herefordshire. They are the easternmost of the four ranges of hills that comprise the Brecon Beacons (or Bannau Brycheiniog) national park, and are frequently confused with the westernmost, which is known as the Black Mountain. The Black Mountains may be roughly defined as those hills contained within a triangle defined by the towns of Abergavenny in the southeast, Hay-on-Wye in the north and the village of Llangors in the west. Other gateway towns to the Black Mountains include Talgarth and Crickhowell. The range of hills is well known to walkers and ramblers for the ease of access and views from the many ridge trails, such as that on the Black Hill in Herefordshire, at the eastern edge of the massif. The range includes the highest public road in Wales at Gospel Pass, and the highest point in southern England at Black Mountain.

Cwm Bwchel Farmhouse, Llanthony, Monmouthshire is a farmhouse dating from the late-Medieval period. It carries a date stone of 1694, which probably refers to a period of reconstruction. The farmhouse is Grade II* listed and a number of the ancillary buildings on the farmstead have their own Grade II listings.

The Grwyne Fawr Reservoir is located in the valley of the river Grwyne Fawr in the Brecon Beacons National Park, Wales. Completed in 1928, it has the capacity to hold 400,000,000 imperial gallons (1,800 megalitres).

Court Farm Barn, Llanthony Priory, Monmouthshire, is a barn of late medieval origins that forms part of a group of historic buildings in the priory complex. It is a Grade I listed building.

Llanthony Priory (Welsh: Priordy Llanddewi Nant Hodni) is a partly ruined former Augustinian priory in the secluded Vale of Ewyas, a steep-sided once-glaciated valley within the Black Mountains area of the Brecon Beacons National Park in Monmouthshire, south east Wales. It lies seven miles north of Abergavenny on an old road to Hay-on-Wye at Llanthony. The priory ruins lie to the west of the prominent Hatterrall Ridge, a limb of the Black mountains. The main ruins are under the care of Cadw and entrance is free. The priory is a Grade I listed building as of 1 September 1956. Within the precincts of the Priory are three other buildings with Grade I listed status: the Abbey Hotel, listed on 1 September 1956; St David's Church, listed on the same date, and Court Farm Barn, listed on 9 January in the same year.

Court Farmhouse, Llanthony, Monmouthshire is a farmhouse of late medieval origins. It may have originally been lodgings for the Prior of Llanthony. Following the Dissolution of the Monasteries the building became a farmhouse. In the 19th century, the Llanthony Estate was bought by Walter Savage Landor who undertook remodelling. The farmhouse is Grade II* listed, with the adjacent barn, Court Farm Barn, having a separate Grade I listing.

Abbey Hotel (also known as the Llanthony Priory Hotel) is a Grade I listed building incorporating a hotel and country inn in Llanthony, Monmouthshire, Wales.

St David's Church is a medieval structure at Llanthony Priory. Established as a church in the sixteenth century, and restored in the late nineteenth century, the church became a Grade I-listed building on 1 September 1956.

Llanthony ( Welsh pronunciation: [ɬanˈtoːniː], Welsh: Llanddewi Nant Honddu) is a village in the community of Crucorney on the northern edge of Monmouthshire, South East Wales, United Kingdom.