The Brendon Hills are a range of hills in west

Somerset Somerset ( , ), Archaism, archaically Somersetshire ( , , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by the Bristol Channel, Gloucestershire, and Bristol to the north, Wiltshire to the east ...

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

. The hills merge level into the eastern side of

Exmoor Exmoor () is loosely defined as an area of hilly open moorland in west Somerset and north Devon in South West England. It is named after the River Exe, the source of which is situated in the centre of the area, two miles north-west of Simons ...

and are included within the

Exmoor National Park Exmoor () is loosely defined as an area of hilly open moorland in west Somerset and north Devon in South West England. It is named after the River Exe, the source of which is situated in the centre of the area, two miles north-west of Simons ...

. The highest point of the range is Lype Hill at above sea level with a secondary summit several kilometres to the southeast at . Both points are marked by

Ordnance Survey The Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose (see Artillery, ordnance and surveying), which was to map Scotland in the wake of the Jacobite rising of ...

trig point A triangulation station, also known as a trigonometrical point, and sometimes informally as a trig, is a fixed surveying station, used in geodetic surveying and other surveying projects in its vicinity. The station is usually set up by a map ...

s and are located within enclosed farmland. Early versions of the name include ''Brunedun'' and ''Brundon'' reflecting an original name of ''Bruna'' or ''Brune'', meaning 'brown one'. ''Dun'' is a common

Old English Old English ( or , or ), or Anglo-Saxon, is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages. It developed from the languages brought to Great Britain by Anglo-S ...

word for a fairly flat and extensive hill. This name is not connected with the village of

Brendon Brendon is a village and former civil parish, now in the parish of Brendon and Countisbury, in the North Devon district, in the county of Devon, England. It is close to the border with Somerset within the Exmoor National Park, the village is ...

in Devon, the name of which has a different origin. The terrain is broken by a series of deeply incised streams and rivers running roughly southwards to meet the

River Haddeo The River Haddeo on Exmoor in Somerset, England flows from the Wimbleball Lake to the River Exe. The valley of the river consists of three tributary valleys extending down from the surrounding farmland to merge with the River Haddeo in the sou ...

, a tributary of the

River Exe The River Exe ( ) is a river in England that source (river), rises at Exe Head, near the village of Simonsbath, on Exmoor in Somerset, from the Bristol Channel coast, but flows more or less directly due south, so that most of its length lie ...

. The hills are quite heavily cultivated unlike their neighbouring upland areas of Exmoor and the

Quantock Hills The Quantock Hills west of Bridgwater in Somerset, England, consist of heathland, oak woodlands, ancient parklands and agricultural land. They were England's first Area of Outstanding Natural Beauty, designated in 1956. Natural England have desi ...

. The Brendon Hills are largely formed from the Morte Slates, a thick faulted and folded sequence of

Devonian The Devonian ( ) is a period (geology), geologic period and system (stratigraphy), system of the Paleozoic era (geology), era during the Phanerozoic eon (geology), eon, spanning 60.3 million years from the end of the preceding Silurian per ...

age sedimentary rocks. An east-west aligned

anticline In structural geology, an anticline is a type of Fold (geology), fold that is an arch-like shape and has its oldest Bed (geology), beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex curve, c ...

syncline In structural geology, a syncline is a fold with younger layers closer to the center of the structure, whereas an anticline is the inverse of a syncline. A synclinorium (plural synclinoriums or synclinoria) is a large syncline with superimposed ...

pair known as the Brendon Anticline and Brendon Syncline folds these rocks. The fold couplet is itself offset by displacement of the rocks on the NNW-SSE aligned Timberscombe Fault System. Over the centuries they have been mined for minerals, notably

ironstone Ironstone is a sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron ore compound from which iron (Fe) can be smelted commercially. Not to be c ...

from which iron is extracted for making

steel Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength a ...

. During the 19th century this activity reached a peak with the

West Somerset Mineral Railway The West Somerset Mineral Railway was a standard gauge line in Somerset, England. Originally expected to be long its length as built was , with a branch to Raleigh's Cross Mine. The line's core purpose was to carry iron ore northwards from ...

, including an incline, being built to take the ore to

Watchet Watchet is a harbour town, civil parish and electoral ward in the county of Somerset, England, with a population in 2011 of 3,785. It is situated west of Bridgwater, north-west of Taunton, and east of Minehead. The town lies at the mouth of ...

from where it was sent to

Ebbw Vale Ebbw Vale (; ) is a town at the head of the valley formed by the Ebbw Fawr tributary of the Ebbw River in Wales. It is the largest town and the administrative centre of Blaenau Gwent county borough. The Ebbw Vale and Brynmawr conurbation has a ...

for

smelting Smelting is a process of applying heat and a chemical reducing agent to an ore to extract a desired base metal product. It is a form of extractive metallurgy that is used to obtain many metals such as iron-making, iron, copper extraction, copper ...

. The main mining operations ended when the mines were worked out towards the end of the 19th century. The hills are on the route of the

Coleridge Way The Coleridge Way is a long-distance trail in Somerset and Devon, England. It was opened in April 2005, and the route links several sites associated with the poet Samuel Taylor Coleridge starting from Coleridge Cottage at Nether Stowey. Ori ...

and are also crossed by the Samaritans Way.Ordnance Survey 1:25,000 scale 'Explorer map' sheet OL9 ''Exmoor''

References

{{Authority control Hills of Somerset Exmoor