Y Graig

Gilwern is a village within the Brecon Beacons National Park in Monmouthshire, Wales. Historically in Brecknockshire, it extends to either side of the River Clydach on the south side of the Usk valley. Its position beside the Monmouthshire and Brecon Canal led to it being an important industrial centre at one time.

The Grwyne Fawr is a river in the Brecon Beacons National Park in south Wales. A section of it forms the administrative border between Powys and Monmouthshire and also of the historic counties of Brecon and Monmouth. The river and its major tributary the Grwyne Fechan flow into the River Usk at Glangrwyney.The name probably originates from gweryn or gwerynau and mawr/fawr meaning 'large river at the wet place'. The Gwryne Fawr rises at Blaen Grwyne Fawr on the southern slopes of Rhos Dirion in the Black Mountains and follows a southeastward course for several miles, its flow interrupted by the presence of Grwyne Fawr Reservoir, the only waterbody within this range of hills. Some way below the reservoir, Mynydd Du Forest clothes the sides of the valley. Though a public road penetrates the valley as far as the north end of the forest, the valley is very sparsely populated. It is only approaching the hamlet of Partrishow that the valley takes on a farmed appearance. The river now heads west along a valley whose alignment is guided by the presence of a geological line of weakness known as the Neath Disturbance. To the west, the Grwyne Fechan takes a parallel course to that of its larger neighbour. It rises on the southern slopes of Waun Fach and gathers a number of tributary streams from the broad ridge which separates it from the Grwyne Fawr. Though there are numerous conifer plantations, the valley has a more open aspect than that of the Grwyne Fawr. The two rivers join near the village of Llanbedr and head south as the Grwyne Fawr through the hamlet of Llangenny to their confluence with the River Usk at Glangrwyney.

Glangrwyney or Glangrwyne is a village 2 miles (3.2 km) southeast of Crickhowell in Powys, Wales. The village is where the Grwyne Fawr has its confluence with the River Usk, southeast of the Sugar Loaf and at the junction of the road from Gilwern with the A40 trunk road. Glangrwyney is in the Vale of Grwyney Community for administrative purposes. The village is built upon the sands and gravels of a dissected alluvial fan which extends into the floodplain of the Usk, together with till derived from the former Usk Valley glacier.Facilities in the village include a village hall and The Bell public house. The former army training camp of Cwrt y Gollen is on the western edge of the village.

Llanwenarth House is a small country house, formerly a hotel, located off the B4246 road, west of Govilon and Llanfoist, just south of Abergavenny in the Usk valley of Monmouthshire, Wales. It was built in the late 16th century, although the drawing room and some of the furnishings are from the Georgian period.

The Monmouthshire and Brecon Canal (Welsh: Camlas Sir Fynwy a Brycheiniog) is a small network of canals in South Wales. For most of its currently (2018) navigable 35-mile (56 km) length it runs through the Brecon Beacons National Park, and its present rural character and tranquillity belies its original purpose as an industrial corridor for coal and iron, which were brought to the canal by a network of tramways and/or railroads, many of which were built and owned by the canal company. The "Mon and Brec" was originally two independent canals – the Monmouthshire Canal from Newport to Pontymoile Basin (including the Crumlin Arm) and the Brecknock and Abergavenny Canal running from Pontymoile to Brecon. Both canals were abandoned in 1962, but the Brecknock and Abergavenny route and a small section of the Monmouthshire route have been reopened since 1970. Much of the rest of the original Monmouthshire Canal is the subject of a restoration plan, which includes the construction of a new marina at the Newport end of the canal.

Llangenny (Welsh: Llangenau) is a village in the Brecon Beacons National Park, Powys, Wales. It is in the lower reaches of the Grwyne Fawr. The Vale of Grwyney community consists of Glangrwyney, Llanbedr, and Llangenny. Three features in Llangenny are the grade II* listed St.Cenau or Saint Keyne parish church, the Dragons Head Inn and Cwm Barn, an old barn converted into accommodation. The population is approximately 100. The area is popular with hill-walkers and for camping and outdoor activities.

Gilwern Halt railway station was a station on the London and North Western Railway's Heads of the Valleys line near the village of Gilwern in the Welsh county of Brecknockshire.

Govilon (Welsh: Gofilon) is a small Welsh village located between Llanfoist and Gilwern near Abergavenny in north Monmouthshire. It is part of the community of Llanfoist Fawr. the population was 1,447 in 2011.

Govilon railway station was a station on the London and North Western Railway's Heads of the Valleys line serving the village of Govilon in the Welsh county of Monmouthshire.

Llanwenarth Baptist Chapel, Govilon, Monmouthshire is the oldest Baptist chapel in Wales. Founded in 1652, the present building was constructed in 1695, and was remodelled in the 18th, 19th and 21st centuries. The chapel is a Grade II* listed building and remains an active Baptist chapel.

Llanwenarth Ultra is an electoral ward near Abergavenny, Monmouthshire. The ward elects councillors to Llanfoist Fawr Community Council and Monmouthshire County Council.

Cwrt-y-Gollen ("Hazel Court") is a British Army training base, 2 miles (3 km) south-east of Crickhowell and just north of the A40 road and the River Usk, in southeastern Powys, Wales.