Tags: Site Of Special Scientific Interest.
Allt Pontfaen – Coed Gelli-fawr is a Site of Special Scientific Interest (or SSSI) in Pembrokeshire South Wales which starts at Allt Pontfaen and finishes at Coed Gelli-fawr. It has been designated as a Site of Special Scientific Interest since January 1954 in an attempt to protect its fragile biological elements. The site has an area of 73.12 hectares and is managed by Natural Resources Wales.