Covering an area of 368 square miles (954 square km), Dartmoor contains the largest and wildest area of open country in the south of England. By virtue of its outstanding natural beauty it is one of the national parks of England and Wales.
Topography
Highest point: High Willhays 621m (2039ft) SX579893
Lowest point: Doghole Bridge 30m (98ft) SX843817
Principal Rivers and Valleys
Ashburn, Avon, Bovey, Dart, Erme, East Okement, East Webburn, Lemon, Lyd, Meavy, Plym, Tavy, Taw, Teign, Walkham, West Okement, West Webburn and the Yealm.
Geology
A large part of Dartmoor (65%) is made up of granite, an igneous rock which was intruded some 295 million years ago.