| Site of Special Scientific Interest | |
| Headley Heath | |
| Location | Surrey |
|---|---|
| Grid reference | TQ 194 526 [1] |
| Interest | Biological Geological |
| Area | 1,016.4 hectares (2,512 acres) [1] |
| Notification | 1986 [1] |
| Location map | Magic Map |
Mole Gap to Reigate Escarpment is a 1,016.4-hectare (2,512-acre) biological and geological Site of Special Scientific Interest west of Reigate in Surrey. [1] [2] It is a Geological Conservation Review site [3] and a Special Area of Conservation. [4] Part of it is a Nature Conservation Review site, Grade I. [5] Two small private nature reserves in the site are managed by the Surrey Wildlife Trust, Dawcombe [6] and Fraser Down. [7]
This eight mile long site on the North Downs contains an outstanding range of wildlife habitats, including large areas of woodland and chalk grassland. Mole Gap has a variety of Quaternary landforms and there are well developed river cliffs where alluvial fans have diverted the River Mole against the valley sides. [8] Some of the chalk grassland is CG2 sheep's fescue - meadow oatgrass community, which is one of the most species-rich types of grazing pasture found in Britain, [9] [10] but the SAC is also designated for CG3, CG4, CG5 and CG6 grassland types. [11]