海厄姆·费勒斯坑和威尔逊坑

Irthlingborough Lakes and Meadows (grid reference SP953699) is a 117-hectare (290-acre) nature reserve in Northamptonshire, owned and managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. The character of the reserve is defined by flooded gravel pits and wet grassland, providing an excellent habitat for large variety of wetland flora and fauna.

Higham Ferrers Pits is a 10 hectare nature reserve Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. It is part of the Upper Nene Valley Gravel Pits Site of Special Scientific Interest, Ramsar internationally important wetland site and Special Protection Area under the EC Birds Directive.