North Hessary Tor is a 517 metres hill just above

Dartmoor Prison HM Prison Dartmoor is a Category C men's prison, located in Princetown, high on Dartmoor in the English county of Devon. Its high granite walls dominate this area of the moor. The prison is owned by the Duchy of Cornwall, and is operated by ...

, in

Princetown Princetown is a villageDespite its name, Princetown is not classed as a town today – it is not included in the County Council's list of the 29 towns in Devon: located within Dartmoor national park in the English county of Devon. It is the p ...

within

Dartmoor Forest Dartmoor Forest is a civil parish in Devon, England. It was formed in 1987 by the splitting of the former parish of Lydford. It covers about entirely within Dartmoor, Dartmoor National Park, and is the largest parish in Devon. Despite its size ...

civil parish In England, a civil parish is a type of administrative parish used for local government. It is a territorial designation which is the lowest tier of local government below districts and counties, or their combined form, the unitary authority ...

, which is in the borough of

West Devon West Devon is a local government district and borough in Devon, England. Towns and villages in the district include Chagford, Okehampton, Princetown and Tavistock, where the council is based. The district was formed on 1 April 1974, under the ...

, Devon, England (). The tor is one of the boundary points mentioned in the perambulations of the

Forest of Dartmoor The Forest of Dartmoor is an ancient royal forest covering part of Dartmoor, Devon, England. A royal forest was an area reserved by the king for hunting, and William the Conqueror introduced the concept of forest law in England in the 11th ce ...

. Standing on the summit is the

North Hessary Tor transmitting station Standing on the summit of North Hessary Tor in Devon, England is an FM radio and television transmitter which uses as aerial a high guyed mast. History It was built by BICC for the BBC in 1955 when a transmitter was needed to introduce 405 ...

, an FM radio and

television Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertisin ...

transmitter which uses a high guyed mast. It was built by the BBC in 1955 when a transmitter was needed to introduce 405-line television into Devon. It now carries a small UHF TV transmitter which serves Princetown and Dartmoor. FM radio transmissions began in 1956 and cover most of Devon and eastern parts of

Cornwall Cornwall (; kw, Kernow ) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic ...

References

{{coord, 50, 33, 1, N, 4, 0, 30, W, type:landmark_scale:2000_region:GB, display=title Dartmoor Tors of Dartmoor