| Cors Fochno | |
| Location: | Ceredigion, Wales |
| Coordinates: | 52.5038°N -4.0419°W |
| Governing Body: | Countryside Council for Wales |
Cors Fochno (in Welsh pronounced as /kɔrs ˈvɔχnɔ/) is a raised peat bog near the village of Borth, in the county of Ceredigion, Wales. Lying on the south side of the Dyfi estuary, it forms a component part of the Dyfi National Nature Reserve. It was designated a UNESCO biosphere reserve in 1976, and is the only such reserve in Wales.[1] A boardwalk leading from the northern edge of the bog skirts the edges of the bog and surrounding woodland.
A significant portion of the 652acres former peatland complex was taken for agriculture; the surviving core area supports the largest expanse of primary near-natural raised bog in an estuarine context within the United Kingdom.
Part of the Dyfi National Nature Reserve, Cors Fochno contains several varieties of peat moss and carnivorous plant.[3]
Otters, red kites, common buzzards, peregrines and, in the winter,hen harriers can be found here together with a number of Welsh Mountain Ponies,[3] and adder, badger, blackcap, Dartford warbler, fallow deer, nightingale, nightjar, willow warbler, and woodcock. The site holds a population of rosy marsh moth, a very rare species in the UK.The site holds significant populations of Eriophorum angustifolium, the common cottongrass, as well as Round-leaved sundew, all visible from the boardwalk which skirts the northern edge of the bog. In 2019, an extremely rare species of orchid for Great Britain, the Irish Lady's-tresses, was found on the bog.[4] The population has persisted into 2024