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| Cors Gyfelog National Nature Reserve | |
|---|---|
IUCN category IV (habitat/species management area) | |
    | |
| Coordinates | 53°00′20″N 4°17′45″W / 53.0056°N 4.295755°W |
| Area | 36.97 ha (91.4 acres) |
| Established | 23 January 2013 |
| Governing body | Natural Resources Wales (NRW) |
Cors Gyfelog National Nature Reserve is a wetland site near the village of Pant Glas in the community of Clynnog, Gwynedd, Wales. It is important as a habitat for the Marsh Fritillary butterfly, as well as Lesser Redpoll and Grasshopper Warbler.[1]
