Mole Valley (UK Parliament constituency) Horsley, Effingham, Lovelace, Send, and Tillingbourne. The constituency is larger than the Mole Valley district in Surrey as it includes five wards in the east of the Borough of Guildford, three of which are nearer to Woking than to Dorking. The largest town in the constituency is Dorking, second largest is Leatherhead and there are many rural and semi-rural villages, generally within one hour's reach of London so properly classed as part of the London Commuter Belt. The constituency was created in 1983; much of the same area was covered by the Dorking constituency which preceded it. It is a
River Mole is thought to have merged with the River Wey near Byfleet and then flowed in a north-easterly direction via Richmond to meet the proto-Thames near Ware in Hertfordshire, (today the Mole and Wey are less than apart at their closest point near Painshill Park). During the Middle Pleistocene period, a large ice sheet built up across much of the East of England, reaching as far south as St Albans and Chelmsford, blocking the path of the proto-Thames. Glacial meltwater from the Anglian ice sheet, caused the Thames to divert southwards and flood the valley of the Mole–Wey river, thus adopting