Tags: Site Of Special Scientific Interest.
Cleddon Bog (grid reference SO509039) is a bog in the vice-county of Monmouthshire which has been notified as a biological Site of Special Scientific Interest. It lies within the Wye Valley Area of Outstanding Natural Beauty. It was declared a Local Nature Reserve in May 1970. The Countryside Council for Wales describes it as the best example of lowland bog habitat in Monmouthshire.The bramble Rubus trelleckensis which is endemic to Monmouthsire is present at the site.