Description:

Cothill NNR is part of the much larger Cothill Fen Special Area of Conservation (SAC), one of the most species-rich lowland calcareous fen systems in the UK.

The NNR includes a full transition from open water, short fen, through to oak/alder woodland. A large number of scarce invertebrates have been recorded here, including southern damselfly and Desmoulin's whorl snail.

Several uncommon plants typical of alkaline fen are found at the site, these include narrow-leaved marsh orchid, marsh helleborine, bog pimpernel, black bog-rush and marsh valerian.

Grass snakes and lizards can often be seen at the reserve and the reed beds provide cover for sedge warblers and reed warblers.

The best time to visit the site is between April and September. There are information boards at the site and a circular trail.

Please note that the site is dangerous in places. Deep water, floating mats of vegetation and pools in the bog pose significant hazards.

For a map and access info, visit the weblink.