CYNGOR CEFN GWLAD CYMRU
COUNTRYSIDE COUNCIL FOR WALES SITE OF SPECIAL SCIENTIFIC INTEREST CITATION
NEATH PORT TALBOT
PANT-Y-SAIS
Date of Notification:
1979, 1983
Natonal Grid Reference:
SS 716942
O.S. Maps:
1:50,000 Sheet number: 170
1:25,000 Sheet number: SS 79
Site Area:
19.5 ha
Description:
Predominantly an area of lowland fen located in a narrow valley which was a former course
of the River Neath. The site supports a range of fenland communities including
Sphagnum and bryophyte dominated areas of poorer fen vegetation,
Molinia caerulea communities,
swamp areas with abundant
Typha latifolia and
Typha angustifolia, and developing fen carr.
Formerly part of the same hydrological system as Crymlyn Bog.
The Tennant Canal section acts as a refuge for aquatic plants, including
Butomus umbellatus which is rare in the county.