Glangrwyney

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.

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.

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.

The Church of St Elli, Llanelly, Monmouthshire, Wales, is a parish church with its origins in the 14th century. The church underwent three major restorations, in 1867–1868, 1897 and 1910–1911. It remains an active parish church and is a Grade II* listed building. The church is dedicated to the 6th-century Saint Elli, who may have been a daughter or granddaughter of King Brychan, or a male disciple of Saint Cadoc.

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.

Llanelly (Welsh: Llanelli) is the name of a parish and coterminous community in the principal area of Monmouthshire, within the historic boundaries of Brecknockshire, south-east Wales. It roughly covers the area of the Clydach Gorge. The population of the parish and ward at the 2011 census was 3,899.

Y Graig, three miles west of Abergavenny, is the site of an abandoned settlement, known to have been occupied in the 18th and 19th centuries. It is a scheduled monument in the care of Cadw.

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.

Ty Uchaf Farmhouse, Llanelly, Monmouthshire is a farmhouse in the west of the county dating from the early 17th century. Located 0.5km north-west of the Church of St Elli, it is a Grade II* listed building.

Clydach House, Llanelly, Monmouthshire is a house dating from 1693. Constructed as the home for the manager of an ironworks in the nearby Clydach Gorge, it remains a private residence and is a Grade II* listed building.

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.

Smart's Bridge, Llanelly, Monmouthshire, is a cast-iron bridge situated in Clydach Gorge. Constructed in 1824, it gave access to the Clydach Ironworks, the most significant industrial enterprise in the gorge. The bridge was designated a Grade II* listed structure in 2000.