Monmouthshire and Brecon Canal

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.

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.

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 Hill is a 441 m high hill in the Brecon Beacons National Park, south of the village of Gilwern in Monmouthshire, Wales. It lies west of the Blorenge. The hill is a Site of Special Scientific Interest.

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 Abergavenny transmitting station was originally built by the IBA in 1969 as a relay for BBC and ITV VHF 405-line analogue television. It consists of a 46 m guyed lattice mast carrying the aerials at the top. This structure was built on a 440 m hill known as Gilwern Hill overlooking the towns of Gilwern and Abergavenny in Monmouthshire, South Wales. The band III VHF television feeds were provided off-air from St. Hilary and Wenvoe, both near Cardiff. In 1973 the site was enhanced to transmit UHF analogue colour television. The UHF television feed came via a two-hop route from Wenvoe, via the Ebbw Vale repeater. The 405-line VHF television service closed across the UK in 1985, but according to the BBC's and IBA's transmitter list and the BBC's internal "Eng. Inf." magazine, Abergavenny was due to close early - in the third quarter of 1982. Currently, the hill's transmitters provide UHF digital terrestrial TV, VHF FM radio and DAB digital radio. The transmission station is currently owned and operated by Arqiva. Freeview digital terrestrial TV was not available from this transmitter before the digital switchover process began at Wenvoe, with the first stage taking place on 31 March 2010. The second stage was completed on 27 April 2010.

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.

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.

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.

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.

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.

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