| Site of Special Scientific Interest | |
  Location within Carmarthenshire | |
| Location | Carmarthenshire |
|---|---|
| Grid reference | SN424084 |
| Coordinates | 51°47′58″N3°48′12″W / 51.79933°N 3.80342°W |
| Area | 2.4 hectares (0.02400 km2; 0.009266 sq mi) |
| Notification | 1988 |
Cwm Twrch is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales. [1] [2]
Cwm Twrch SSSI is located on and around the Afon Twrch approximately 0.9 miles (1.4 km) north-east of Ystradowen, and covers 2.4 hectares (5.9 acres). [1] [2]
The site is notable for its geology, where river erosion provides the best exposes the Amman Marine Band, a sedimentary layer showing a diverse fauna, and which marks the Westphalian A – Westphalian B boundary in this Carboniferous rock strata. [2]
Cross Hands is a village in Carmarthenshire, Wales, approximately 12 miles from Carmarthen.
The River Cleddau consists of the Eastern and Western Cleddau rivers in Pembrokeshire, west Wales. They unite to form the Daugleddau estuary and the important harbour of Milford Haven.
The Afon Twrch is a river which rises in the Black Mountain in south Wales. It forms the boundary between the counties of Brecknockshire and Carmarthenshire and, downstream of Ystradowen, between Brecknockshire and Glamorgan.
Mynydd Llangynidr is a mountain in the Brecon Beacons National Park largely in the county of Powys, south Wales. Its southern slopes extend into the northernmost parts of the county borough of Blaenau Gwent. It is named from the village of Llangynidr which sits in the valley of the River Usk to the north of it. It is essentially an undulating plateau rising in the west to a height of 557m at Garn Fawr at OS grid ref SO 123151. A secondary high point is achieved at a point marked by a trig point at SO 147159. To the north the hill overlooks the valleys of Dyffryn Crawnon and Cwm Claisfer, themselves tributary valleys of the Usk. The shallow upper valley of the Ebbw River reaches into the plateau in the southeast whilst the upper reaches of the Sirhowy Valley and its tributary the Nant Trefil define its western margins. A further tributary, the Nant Milgatw, reaches in from the south whilst the sharp edge of Rassau Industrial Estate also defines a part of its southern margin. Passing east across the B4560, the hill merges with Mynydd Llangatwg which has a similar character.
Tumble, is a village situated south of Cross Hands near the towns of Carmarthen and Llanelli in Carmarthenshire, Wales. Tumble, along with Cross Hands is part of the community of Llannon. The population, including Drefach was 4,302.
Birdshill Quarry is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales.
Cae Blaen-dyffryn is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales.
Coed Cochion Quarry is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales, in which the geology of the site has preserved rare Precambrian fossils.
Crûg Farm Quarry is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales, for the geological records preserved in its limestone.
Mynydd Llangyndeyrn is a Site of Special Scientific Interest (SSSI) in Carmarthen & Dinefwr, Wales, and a hill reaching 263 metres, which is a Marilyn.
Gweunydd Blaencleddau is a large wetland complex in a shallow south-west valley around the headwaters of the Eastern Cleddau river. It is a Site of Special Scientific Interest (SSSI) and a Special Area of Conservation (SAC) situated in Pembrokeshire, South Wales.
Aber Taf is a large Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales, and forms part of the Carmarthen Bay and Estuaries Special Area of Conservation.
Smarts Quarry is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales, designated in 1987 for its geological features.
Gwernydd Penbre is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales. It is also spelled by DEFRA and Natural Resources Wales as Gwernydd Pembre.
Caeau Pant-y-Bryn is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales.
Rhosydd Llanpumsaint is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales.
Gweunydd Glan-y-glasnant is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales, designated in 1993 for its botanical features.
Machynys Ponds is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales, designated in 1993 for its botanical features.
Cwm Clydach is the name of a Site of Special Scientific Interest in Carmarthenshire, Wales. The site is located 4 kilometres from the coast and the town of Kidwelly.