Old Sulehay Forest

Old Sulehay Forest is a 34.8 hectare biological Site of Special Scientific Interest east of King's Cliffe in Northamptonshire. It is part of the 85 hectare Old Sulehay nature reserve, which is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.

This ancient forest has a number of different soil conditions and coppice types, and the ground flora is diverse. Abundant herbs include dog's mercury, bracken, bramble, ramsons, wood anemone and bluebells.

There is access by footpaths from Wansford Road.