Dyffryn Cennen

Ffairfach railway station serves the village of Ffairfach, near Llandeilo, Carmarthenshire, Wales. The station is on the Heart of Wales Line 30 miles (48 km) north east of Swansea. The railway station is located next to the main road Heol Cennen, which crosses the line at its south end. This is the nearest railway station to Carreg Cennen Castle. The former station signal box has been preserved on the Gwili Railway as a working museum exhibit after being made redundant here when the level crossing was automated.All trains serving the station are operated by Transport for Wales.

Ysgol Tre-Gib was a bilingual, English language / Welsh language comprehensive school for pupils aged 11 yrs to 18 years based in Ffairfach, Llandeilo in Carmarthenshire, Wales, bordering on the Brecon Beacons National Park. The school served a large catchment area from Llandovery to the north to Ammanford to the south. Some famous rugby union players attended this school, including Luke Charteris, who now plays for the Bath. Plans were afoot to merge Ysgol Tre-Gib with Llandovery's Ysgol Pantycelyn, with the new school being called Ysgol Dyffryn Tywi. However, there was opposition to the closure of Llandovery's main school. The new school is called Ysgol Bro Dinefwr, and all pupils moved to the new campus in September 2016.

The Afon Cennen is a river in the county of Carmarthenshire, south Wales. It rises on the northern slopes of the Black Mountain to the east of the summit of Tair Carn Uchaf and flows north to Blaencennen Farm, then westwards past Carreg Cennen Castle, continuing through the village of Trap where it exits the Brecon Beacons National Park. Near the hamlet of Derwydd it turns northwest for a mile then northeast to run through the village of Ffairfach to its confluence with the River Towy opposite Llandeilo.The name could derive either from 'cen' meaning lichen or else from a personal name.

Ffairfach is a village one-half mile (0.80 km) south of the market town of Llandeilo in the eastern part of Carmarthenshire, Wales. It is close to the confluence of the Afon Cennen and the River Towy. Population is 516 according to 2017 census.

Llandeilo is the name of an electoral ward for Carmarthenshire County Council, which includes the communities of Llandeilo and Dyffryn Cennen, in Carmarthenshire, Wales. It is represented by one county councillor.

Llandilo Bridge railway station served the town of Llandeilo, in the historical county of Carmarthenshire, Wales, from 1865 to 1963 on the Llanelly Railway.

Tregyb Woodlands (Welsh: Coedydd Tregyb) is a Site of Special Scientific Interest (SSSI) in Carmarthen & Dinefwr, Wales. Designated as a SSSI since 1980 as a conservation effort to protect and conserve the site, its area is 27 hectares.The woodland lies around 1 mile (1.6 km) to the west of the town of Llandeilo, and are within the Brecon Beacons National Park. Three woods make up the SSSI; Cae'r Coed, Big Grove and Warren Tregyb. The SSSI was first notified on 1 January 1980, under the powers of the National Parks and Access to the Countryside Act 1949. Following the passing of the Wildlife and Countryside Act 1981, the site was renotified on 23 March 1983 to bring it under the provisions of the new Act.The woodlands are managed by the Woodland Trust, who also manage adjacent woodland outside of the designated SSSI area, creating a total wood 42 hectares in area.

Derwydd is a hamlet in the south-east of Carmarthenshire, Wales, historically situated in the parish of Llandybie, north of Ammanford. It is around halfway between Ammanford (to the south) and Llandeilo, at a rural crossroads between the A483 and A476 roads. The name of the hamlet literally means "druid" in Welsh, but is more likely to have derived from derwen (oak tree), which are common in the area.In 1870–72, John Marius Wilson's Imperial Gazetteer of England and Wales described Derwydd as follows:"DERWIDD, or Derwydd, a hamlet in Llandebie parish, Carmarthen; on the river Cennen, near the Vale of Towy railway, 4 miles SSE of Llandeilo-fawr. Derwidd-Road station, on the railway, is east of the hamlet. Derwidd House belonged to Sir Harry Vaughan, who commanded in the army of Charles I.; belonged afterwards to the Stepneys; and contains some furniture of the time of Henry VIII."

Ysgol Bro Dinefwr is a bilingual secondary school for pupils aged 11–19 in Ffairfach, Carmarthenshire. As of 2016, the school had 1,182 pupils on roll, with approximately 200 of those pupils in the sixth form.

Llandeilo Bridge (Welsh: Pont Llandeilo) is a Grade II* listed road bridge crossing the River Towy in Llandeilo, Carmarthenshire, Wales. It carries the main A483 road towards Ffairfach.

Caeau Tir-mawr is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.

The St Teilo's Church, is an Anglican parish church in the town of Llandeilo, Carmarthenshire, Wales. The fabric of the building has medieval origins but stands on a much older site and was rebuilt in the early eighteenth century. It was designated as a Grade II listed building on 14 March 1966