There are four Local Nature Reserves in Mole Valley, looked after by Mole Valley District Council:
An area of woodland that used to be part of the park that belonged to the manor house of Ashtead. The woodland is mainly oak and there are 2 large ponds.
An ancient semi-natural woodland with wild service trees and small leaved lime, and a small unimproved meadow. This site lies just north of Gatwick airport.
Inholms Clay Pit
An LNR in North Holmwood that was once quarried for clay for brick making, but has now become a haven for wildlife. The site is a mixture of open grassland and young woodland. The south facing slope is particularly important for insects including the rare small blue butterfly.
River Mole Local Nature Reserve
A diverse range of plants and animals found along the riverbanks. The islands in the river are owned by the council and provide a valuable habitat for wildlife.