The London/ Enfield/Hertfordshire boundary continues due north crossing The Ridgeway, the M25 and going down the east side of Foxhole Hill to Moses Hill. , and the east end of Coningsby Drive, Honeywood and Featherstone Close.
The London/ Enfield/Hertfordshire boundary comes south east following Cooperslane Road.
Post to the east Barvin Park 30 01
Post to the north Potters Bar 28 02
Post to the south Plumridge Hill
Post to the west Potters Bar interchange
Sites on the London, Enfield side of the boundary
Pond Wood. Managed by the Hertfordshire and Middlesex Wildlife Trust
Meadow –at the southern end is an ancient meadow with woodland on three sides and Turkey Brook on the fourth. It is grazed by Shetland sheep to stop the scrub encroaching. It is rich in butterflies, grasshoppers and there are large numbers of old ant hills.
lake - at the southern end colonised by common reedmace and gipsywort. It supports large numbers of dragonflies including the ruddy darter.
New Cottage Farm. On a high point of the ridge.