| Site of Special Scientific Interest | |
 Hackhurst Downs | |
| Location | Surrey |
|---|---|
| Grid reference | TQ 117 491 [1] |
| Interest | Biological |
| Area | 185.1 hectares (457 acres) [1] |
| Notification | 1986 [1] |
| Location map | Magic Map |
Hackhurst and White Downs is a 185.1-hectare (457-acre) biological Site of Special Scientific Interest west of Dorking in Surrey. [1] [2] White Downs is a Nature Conservation Review site, Grade 2, [3] and part of it is in the 200-hectare (490-acre) White Downs nature reserve, which is owned by the Wotton Estate and managed by the Surrey Wildlife Trust (SWT). [4] Hackhurst Downs is a 29.9-hectare (74-acre) Local Nature Reserve, [5] [6] which part of the 40-hectare (99-acre) Hackhurst Downs nature reserve, which is owned by Surrey County Council and also managed by the SWT. [7]
This steeply sloping land is a shared escarpment with Ranmore Common, amounting to an almost whole section of the North Downs, which has grassland, secondary woodland and scrub. It has a rich invertebrate fauna with forty species of butterfly, including adonis blue, chalkhill blue, brown hairstreak, Duke of Burgundy fritillary, marbled white and silver-spotted skipper. [8]
