The Turnford and Cheshunt Pits is a biological Site of Special Scientific Interest near Cheshunt in Hertfordshire and Essex and covers a total of 428.17 acres. It is part of the Lee Valley Special Protection Area.

Cheshunt is a town in the Borough of Broxbourne in Hertfordshire, England, 12 miles (19 km) north of Central London on the River Lea and Lee Navigation and directly south of Broxbourne. It contains a section of the Lee Valley Park, including much of the River Lee Country Park. To the north lies Broxbourne and Wormley, Waltham Abbey to the east, Waltham Cross and Enfield to the south, and Cuffley to the west.