| Site of Special Scientific Interest | |
  Location within Carmarthenshire | |
| Location | Carmarthenshire |
|---|---|
| Grid reference | SN424084 |
| Coordinates | 51°47′58″N 3°48′12″W / 51.79933°N 3.80342°W / 51.79933; -3.80342 |
| Area | 2.4 hectares (0.02400 km; 0.009266 sq mi) |
| Notification | 1988 |
Cwm Twrch is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales.
SSSI
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).
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.
See also
References
- ^ "MAGIC Map Application". DEFRA MAGIC Map. DEFRA.
- ^ "Site of Special Scientific Interest, Carmarthenshire, Cwm Twrch" (PDF).
External links
- SSSI Citation for Cwm Twrch
- Citation map for Cwm Twrch
- Your Special Site and its Future - Cwm Twrch SSSI overview from Natural Resources Wales
- Cwm Twrch SSSI marked on DEFRA's MAGIC Map