It is in two separate areas within Hampstead Heath, North Wood between Kenwood House and Hampstead Lane, and the larger Ken Wood, south of Kenwood House.

[1][2] The site has many old and over-mature trees, and extensive dead wood which provides a habitat for invertebrates, including the nationally rare jewel beetle Agrilus pannonicus.

This type of canopy is uncommon nationally and very scarce in Greater London.

The shrub layer is dominated by holly and rowan.

Next to Ken Wood is a small valley which has soft-rush, six sphagnum species and water horsetail.