Coed Nant Menascin is a

Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain, or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland, is a conservation designation denoting a protected area in the United Kingdom and Isle ...

(SSSI), around the

Nant Menasgin The Nant Menasgin is a short river in Powys, Wales whose headwaters rise in Cwm Oergwm, beneath Fan y Bîg, in the central Brecon Beacons, and flow northeastwards via Llanfrynach, to join the River Usk at Pencelli. The stream in Cwm Oergwm is ...

, near

Llanfrynach Llanfrynach is a village and community in the county of Powys, Wales, and the historic county of Brecknockshire. The population of the community as taken at the 2011 census was 571. It lies just to the southeast of Brecon in the Brecon Beacon ...

in the

Brecon Beacons National Park Brecon Beacons National Park, officially named Bannau Brycheiniog National Park (), is a National parks of the United Kingdom, national park in Wales. It is named after the Brecon Beacons (), the mountain range at its centre. The national park ...

Powys Powys ( , ) is a Principal areas of Wales, county and Preserved counties of Wales, preserved county in Wales. It borders Gwynedd, Denbighshire, and Wrexham County Borough, Wrexham to the north; the English Ceremonial counties of England, ceremo ...

, Wales. () The Cwm Oergwm Nature Reserve of the

Brecknock Wildlife Trust Brecknock Wildlife Trust () is a former wildlife trust covering the vice county of Brecknockshire in Wales. The Trust was founded in 1964, with a network of volunteers carrying out most of its work. No full-time conservation officers were in po ...

forms a large part of the site. The site comprises semi-natural woodland in the steep wooded valley of the Nant Menascin (Menasgin), on the north-east slopes of the

Brecon Beacons The Brecon Beacons (; ) are a mountain range in Wales. The range includes South Wales's highest mountain, Pen y Fan (), its twin summit Corn Du (), and Craig Gwaun Taf (), which are the three highest peaks in the range. The Brecon Beacons ha ...

. The woodland supports a wide variety of higher and

lower plants Non-vascular plants are plants without a vascular system consisting of xylem and phloem. Instead, they may possess simpler tissues that have specialized functions for the internal transport of water. Non-vascular plants include two distantly rela ...

. Access is restricted, except for the public footpaths that cross the site.

References

See also