Corsydd Llangloffan

Castlemorris (Welsh: Casmorys; also known as Castle Morris or Castle Maurice) is a small village in the parish and community of Mathry, Pembrokeshire, Wales, south of the Western Cleddau river, on the B4331 road between Mathry and Letterston. It has a population of roughly 150 people.

Mathry Road Halt railway station was on the Clarbeston Road and Letterston line of the Great Western Railway. It served the village of Letterston 1 mile to the south east, and on railway maps was suffixed for St David's. It was named Mathry when opened in 1923, and renamed the following year.

Letterston (Welsh: Treletert) is a parish and local government community in north Pembrokeshire, Wales. Situated on the A40, Haverfordwest is 10 miles (16 km) to the south and Fishguard is 7 miles (11 km) to the north. The name is derived from the medieval owners of the parish, the Lettard family.

Welsh Hook Halt railway station served the hamlet of Welsh Hook, Pembrokeshire, Wales, from 1924 to 1964 on the Clarbeston Road and Letterston Railway.

Hayscastle or Hays-Castle (Welsh: Cas-lai) is a village, parish and community of Pembrokeshire in West Wales, 7½ miles (N. W. by N.) from Haverfordwest on the B4330 road.

Llanstinan is a rural parish in the community of Scleddau, north Pembrokeshire, Wales, 3 miles (4.8 km) south of Fishguard.

Letterston railway station served the parish of Letterston, Pembrokeshire, Wales, from 1895 to 1965 on the North Pembrokeshire and Fishguard Railway.

Preseli Pembrokeshire (Welsh: Preseli Sir Benfro) is a constituency of the Senedd. It elects one Member of the Senedd by the first past the post method of election. It is also one of eight constituencies in the Mid and West Wales electoral region, which elects four additional members, in addition to eight constituency members, to produce a degree of proportional representation for the region as a whole.

Preseli Pembrokeshire (English: , prə-SEL-ee; Welsh: Preseli Sir Benfro) was one of six local government districts of Dyfed in West Wales from 1974 to 1996. Until 1987 the name of the district was Preseli. The district took its name from the Preseli Hills.

Trecwn (Welsh: Trecŵn [trɛˈkuːn]) is a village in Pembrokeshire, west Wales, 1.6 miles (2.6 km) east of the A40 (Fishguard to Haverfordwest) road in the community of Scleddau. It is in the parish of Llanstinan.

RNAD Trecwn is a decommissioned Royal Navy Armaments Depot, south of Fishguard in the village of Trecwn, Pembrokeshire, West Wales. Built in 1938 to store and supply naval mines and munitions ordnance to the Royal Navy, at its height during the Cold War 400 permanent workers were deployed at the site, housed in an MoD built town infrastructure. The site had an on-site, 2 ft 6 in (762 mm) narrow gauge railway, built using copper to reduce sparks. The weapons were both delivered to the site and then distributed using standard gauge rail to Fishguard, Neyland for Milford Haven, and latterly Pembroke Dock. Decommissioned in 1992, all 58 cavern storage bunkers and the extensive above ground network of storage sheds and other military buildings remain in place. Ownership of the site was transferred from the Ministry of Defence to Anglo-Irish consortium Omega Pacific in 1998, and then by court order to the Manhattan Loft Corporation in 2002. The site is being redeveloped as an industrial park.

Wolfscastle (Welsh: Casblaidd), also spelt Wolf's Castle, is a village and community in Pembrokeshire, between Haverfordwest and Fishguard, in southwest Wales. It was historically in the parish of St Dogwells.