The Pennines ( //), also known as the Pennine Chain or Pennine Hills,  are a more-or-less continuous range of hills and mountains running between three regions of Northern England: North West England on the west, and North East England and Yorkshire and the Humber on the east. Commonly described as the " backbone of England",   the range stretches northwards from the Peak District at the southern end, through the South Pennines, the Yorkshire Dales and North Pennines to the Tyne Gap, which separates the range from the Cheviot Hills across the Anglo-Scottish border (some definitions include the Cheviot Hills). South of the Aire Gap is a western spur into east Lancashire, comprising the Rossendale Fells, West Pennine Moors  and the Bowland Fells in North Lancashire.  The Howgill Fells  and Orton Fells  in Cumbria are sometimes considered to be Pennine spurs to the west of the range. The Pennines are an important water catchment area with numerous reservoirs in the head streams of the river valleys.
The region is widely considered to be one of the most scenic areas of the United Kingdom.  The North Pennines and Nidderdale are designated Areas of Outstanding Natural Beauty (AONB), as are Bowland and Pendle Hill.  Parts of the Pennines are incorporated into the Peak District National Park and Yorkshire Dales National Park.  Britain's oldest long-distance footpath, the Pennine Way, runs along most of the Pennine Chain and is 268 miles (429 km) long. 
Various etymologies have proposed treating "Pennine" as a native Brittonic/Modern Welsh name related to pen- ("head").  It did not become a common name until the 18th century and almost certainly derives from modern comparisons with the Apennine Mountains, which run down the middle of Italy in a similar fashion. 
Following an 1853 article by Arthur Hussey,  it has become a common belief that the name derives from a passage in The Description of Britain ( Latin: De Situ Britanniæ),  an infamous historical forgery concocted by Charles Bertram in the 1740s and accepted as genuine until the 1840s. In 2004, George Redmonds reassessed this, finding that numerous respected writers passed over the origin of the mountains' name in silence even in works dedicated to the topological etymology of Derbyshire and Lancashire.  He found that the derivation from Bertram was widely believed and considered uncomfortable.  In fact, Redmonds found repeated comparisons with the Italian Apennines going back at least as early as William Camden (1551–1623),  many of whose placenames and ideas Bertram incorporated into his work. Bertram was responsible (at most) with popularizing the name against other contenders such as Daniel Defoe's "English Andes".  His own form of the name was the "Pennine Alps" (Alpes Peninos), which today is used for a western section of the continental Alps. Those mountains (the area around the St. Bernard Pass) derive their name from the Latin Alpes Pœninæ whose name has been variously derived from the Carthaginians,  a local god,  and Celtic peninus.  The St. Bernard Pass was the pass used in the invasions of Italy by the Gallic Boii and Lingones in 390 BC. The etymology of the Apennines themselves—whose name first referred to their northern extremity and then later spread southward—is also disputed but is usually taken to derive from some form of Celtic pen or ben ("mountain, head").   
Various towns and geographical features have names of Celtic origin, including Penrith, Pen-y-ghent, the River Eden, and Cumbria. More commonly, local names result from Anglo-Saxon and Norse settlements. In Yorkshire and Cumbria, many words of Norse origin, not commonly used in standard English, are part of everyday speech: for example, gill/ghyll (narrow steep valley), beck (brook or stream), fell (hill), and dale (valley). 
The northern Pennine range is bordered by the foothills of the Lake District, and uplands of the Howgill Fells, Orton Fells and Cheviot Hills. The West Pennine Moors, Rossendale Valley  and Forest of Bowland  are western spurs, the former two are in the South Pennines. The Howgill Fells  and Orton Fells  are sometimes considered to be part of the Pennines, both inside the Yorkshire Dales National Park.  The Pennines are fringed by extensive lowlands including the Eden Valley, West Lancashire Coastal Plain, Cheshire Plain, Vale of York, and the Midland Plains.
Most of the Pennine landscape is characterised by upland areas of high moorland indented by more fertile river valleys, although the landscape varies in different areas. The Peak District consists of hills, plateaus and valleys, divided into the Dark Peak with moorlands and gritstone edges, and the White Peak with limestone gorges.  The South Pennines is an area of hills and moorlands with narrow valleys between the Peak District and Yorkshire Dales.  Bowland is dominated by a central upland landform of deeply incised gritstone fells covered with tracts of heather-covered peat moorland, blanket bog and steep-sided wooded valleys linking the upland and lowland landscapes.  The landscape is higher and more mountainous in the Yorkshire Dales and North Pennines. The Yorkshire Dales are characterised by valleys, moorlands and fells  while the North Pennines consist of plateaus, moorlands, fells, edges and valleys, with most of the higher peaks in the west.
Although the Pennines cover the area between the Tyne Gap and the Peak District, the Pennine Way affects perceptions of the northern and southern extents of the defined area. The Cheviot Hills, separated by the Tyne Gap and Whin Sill, along which run the A69 and Hadrian's Wall, are not part of the Pennines but, perhaps because the Pennine Way crosses them, they are treated as such. The southern end of the Pennines is said to be in the High Peak of Derbyshire at Edale, the start of the Pennine Way but the range of hills continues south across the Peak District to the Trent Valley,  encompassing northern and eastern Staffordshire, and southern Derbyshire.   
Rising less than 3,000 feet (900 m), the Pennines are fells, with most of the mountainous terrain in the north. The highest point is Cross Fell in eastern Cumbria, at 2,930 feet (893 m) and other principal peaks in the North Pennines are Great Dun Fell 2,782 ft (848 m), Mickle Fell 2,585 ft (788 m), and Burnhope Seat 2,451 ft (747 m). Principal peaks in the Yorkshire Dales include Whernside 2,415 ft (736 m), Ingleborough 2,372 ft (723 m), High Seat 2,328 ft (710 m), Wild Boar Fell 2,324 ft (708 m) and Pen-y-ghent 2,274 ft (693 m). Principal peaks in the Forest of Bowland include Ward's Stone 1,841 ft (561 m), Fair Snape Fell 1,710 ft (521 m), and Hawthornthwaite Fell 1,572 ft (479 m). Terrain is lower towards the south, principal peaks in the South Pennines and Peak District include Kinder Scout 2,087 ft (636 m), Bleaklow 2,077 ft (633 m), Black Chew Head 1,778 ft (542 m), Rombalds Moor 1,319 ft (402 m) and Winter Hill 1,496 ft (456 m).
For much of their length the Pennine hills are the main watershed in northern England, dividing east and west. The rivers Eden, Ribble, Dane and tributaries of the Mersey (including the Irwell, Tame and Goyt) flow westwards towards the Irish Sea.
On the eastern side of the Pennines, the rivers Tyne, Wear, and Tees all drain directly to the North Sea. The Swale, Ure, Nidd, Wharfe, Aire, Calder and Don all flow into the Yorkshire Ouse, and reach the sea through the Humber Estuary.
The River Trent flows around the southern end of the Pennines and northwards on the eastern side taking water from tributaries, principally the Dove and Derwent. The Trent drains the east and west sides of the southern Pennines, also reaching the North Sea through the Humber Estuary. The Trent and Ouse meet and enter the Humber at Trent Falls. Maximum discharge through the Humber can reach 1,500 m3/s (53,000 cu ft/s). 
The Pennine climate is generally temperate like that of the rest of England, but the hills have more precipitation, stronger winds and colder weather than the surrounding areas. Higher elevations have a tundra climate. More snow falls on the Pennines than on surrounding lowland areas due to the elevation and distance from the coast; unlike lowland areas of England, the Pennines can have quite severe winters.
The northwest is amongst the wettest regions of England and much of the rain falls on the Pennines. The eastern side is drier than the west—the rain shadow shields northeast England from rainfall that would otherwise fall there.
Precipitation is important for the area's biodiversity and human population. Many towns and cities are located along rivers flowing from the hills and in northwest England the lack of natural aquifers is compensated for by reservoirs.
Water has carved out gorges, caves and limestone landscapes in the Yorkshire Dales and Peak District. In some areas precipitation has contributed to poor soils, resulting in part in moorland landscapes that characterize much of the range. In other areas where the soil has not been degraded, it has resulted in lush vegetation.
For the purpose of growing plants, the Pennines are in hardiness zones 7 and 8, as defined by the USDA. Zone 8 is common throughout most of the UK, and zone 7 is the UK's coldest hardiness zone. The Pennines, Scottish Highlands, Southern Uplands and Snowdonia are the only areas of the UK in zone 7.
|Climate data for Great Dun Fell, North Pennines (848 m) 1981–2010|
|Average high °C (°F)||1.5
|Average low °C (°F)||−2.6
|Source: Met Office |
The Pennines have been carved from a series of geological structures whose overall form is a broad anticline whose axis extends in a north–south direction. The North Pennines are coincident with the Alston Block and the Yorkshire Dales are coincident with the Askrigg Block. In the south the Peak District is essentially a flat-topped dome.
Each of the structures consists of Carboniferous limestone overlain with Millstone Grit. The limestone is exposed at the surface in the North Pennines, Yorkshire Dales and the Peak District. In the Dales and the White Peak, limestone exposure has caused the formation of large cave systems and watercourses. In the Dales the caves or potholes are known as "pots" in the Yorkshire dialect. They include some of the largest caves in England at Gaping Gill, more than 350 ft (107 m) deep and Rowten Pot, 365 ft (111 m) deep. Titan in the Peak District, the deepest shaft known in Britain, is connected to Peak Cavern in Castleton, Derbyshire, the largest cave entrance in the country. Erosion of the limestone has led to geological formations, such as the limestone pavements at Malham Cove.
Between the northern and southern areas of exposed limestone between Skipton and the Dark Peak is a belt of exposed gritstone. Here the shales and sandstones of the Millstone Grit form high hills occupied by moorland covered with bracken, peat, heather and coarse grasses;  the higher ground is uncultivable and barely fit for pasture.
The Pennine hills were controlled by the tribal federation of the Brigantes, made up of small tribes who inhabited the area and cooperated on defence and external affairs. They evolved an early form of kingdom. During Roman times, the Brigantes were dominated by the Romans who exploited the Pennines for their natural resources including the wild animals found there.
The Pennines were an obstacle for Anglo-Saxon expansion westwards, although it appears the Anglo-Saxons travelled through the valleys. During the Dark Ages the Pennines were controlled by Celtic and Anglo-Saxon kingdoms. It is believed that the north Pennines were under the control of the kingdom of Rheged.
During Norse times the Pennines were settled by Viking Danes in the east and Norwegian Vikings in the west. The Vikings influenced place names, culture and genetics. When England was unified the Pennines were incorporated. The mix of Celtic, Anglo-Saxon and Viking heritage resembled much of the rest of northern England and its culture developed alongside its lowland neighbours in northwest and northeast England. The Pennines were not a distinct political polity, but were divided between neighbouring counties in northeast and northwest England; a major part was in the West Riding of Yorkshire.
The Pennine region is sparsely populated by English standards. Larger population centres are in the foothills and lowlands fringing the southern Pennine range, such as Barnsley, Chesterfield, Halifax, Huddersfield, Macclesfield, Oldham, Bury, Rochdale, Middleton, and Stockport but most of the northern Pennine range is thinly populated.  The cities of Bradford, Derby, Leeds, Manchester, Sheffield, Stoke-on-Trent and Wakefield are also in the surrounding foothills and lowlands.
The main economic activities in the Pennines include sheep farming, quarrying, finance and tourism. In the Peak District, tourism is the major local employment for park residents (24%), with manufacturing industries (19%) and quarrying (12%) also being important while 12% are employed in agriculture.  Limestone is the most important mineral quarried, mainly for roads and cement, while other extracted materials include shale for cement and gritstone for building stone.  The springs at Buxton and Ashbourne are exploited to produce bottled mineral water and there are approximately 2,700 farms in the National Park.  The South Pennines are predominantly industrial, with the main industries including textiles, quarrying and mining,  while other economic activities within the South Pennines include tourism and farming. 
Although the Forest of Bowland is mostly rural, the main economic activities in the area include farming  and tourism.  In the Yorkshire Dales, tourism accounts for £350 million of expenditure every year while employment is mostly dominated by farming, accommodation and food sectors. There are also significant challenges for managing tourism, farming and other developments within the National Park.  The main economic activities in the North Pennines include tourism, farming, timber and small-scale quarrying, due to the rural landscape. 
Gaps that allow west–east communication across the Pennines include the Tyne Gap between the Pennines and the Cheviots, through which the A69 road and Tyne Valley railway link Carlisle and Newcastle upon Tyne. The A66 road, its summit at 1,450 feet (440 m), follows the course of a Roman road from Scotch Corner to Penrith through the Stainmore Gap between the Eden Valley in Cumbria and Teesdale in County Durham. The Aire Gap links Lancashire and Yorkshire via the valleys of the Aire and Ribble. Other high-level roads include Buttertubs Pass, named from limestone potholes near its 1,729-foot (527 m) summit, between Hawes in Wensleydale and Swaledale and the A684 road from Sedbergh to Hawes via Garsdale Head which reaches 1,100 feet (340 m). 
Further south the A58 road traverses the Calder Valley between West Yorkshire and Greater Manchester reaching 1,282 feet (391 m) between Littleborough and Ripponden, while the A646 road along the Calder Valley between Burnley and Halifax reaches 764 feet (233 m) following valley floors. In the Peak District the A628 Woodhead road links the M67 motorway in Greater Manchester with the M1 motorway in South Yorkshire and Holme Moss is crossed by the A6024 road, whose highest point is near Holme Moss transmitting station between Longdendale and Holmfirth. 
Three trans-Pennine canals built during the Industrial Revolution cross the range:
- The Huddersfield Narrow Canal connects Huddersfield in the east with Manchester in the west. When it reaches Marsden, it passes under the hills through the Standedge Tunnel to Diggle. Fortnightly during the summer season, one can pass through the tunnel on a public narrowboat. 
- The Rochdale Canal crosses the Pennines via Rochdale, connecting the market town of Sowerby Bridge with Manchester.
- The Leeds and Liverpool Canal, the longest and most northerly, crosses the Pennines via Skipton, Burnley, Chorley and Wigan connecting Leeds in the east with Liverpool in the west.
The first of three Woodhead Tunnels was completed by the Sheffield, Ashton-Under-Lyne and Manchester Railway in 1845, engineered by Charles Vignoles and Joseph Locke. At the time of its completion in 1845, Woodhead 1 was one of the world's longest railway tunnels at a length of 3 miles 13 yards (4,840 m); it was the first of several trans-Pennine tunnels including the Standedge and Totley tunnels, which are only slightly longer. The first two tunnels were replaced by Woodhead 3, which was longer at 3 miles 66 yards (4860m). It was bored for the overhead electrification of the route and completed in 1953. The tunnel was opened by the transport minister Alan Lennox-Boyd on 3 June 1954.  It was designed by Sir William Halcrow & Partners. The line was closed in 1981.
The London and North Western Railway acquired the Huddersfield and Manchester Railway in 1847 and built a single-line tunnel parallel to the canal tunnel at Standedge with a length of 3 miles, 57 yards (4803 m). Today rail services along the Huddersfield line between Huddersfield and Victoria and Piccadilly stations in Manchester are operated by TransPennine Express and Northern. Between 1869 and 1876 the Midland Railway built the Settle-Carlisle Line through remote, scenic regions of the Pennines from near Settle to Carlisle passing Appleby-in-Westmorland and other settlements, some a distance from their stations. The line has survived, despite difficult times  and is operated by Northern Rail. 
The Trans Pennine Trail, a long-distance route for cyclists, horse riders and walkers, runs west–east alongside rivers and canals, along disused railway tracks and through historic towns and cities from Southport to Hornsea (207 miles/333 km).  It crosses the north–south Pennine Way (268 miles/431 km) at Crowden-in-Longdendale.
Considerable areas of the Pennines are protected as UK national parks and Areas of Outstanding Natural Beauty (AONBs). Areas of Outstanding Natural Beauty are afforded much the same protection as national parks. The national parks within the Pennines are the Yorkshire Dales National Park (7) and the Peak District National Park (1).
The North Pennines AONB just north of the Yorkshire Dales rivals the national park in size and includes some of the Pennines' highest peaks and its most isolated and sparsely populated areas. Other AONBs are Nidderdale east of the Yorkshire Dales, and the Bowland Fells, including Pendle Hill, west of the Yorkshire Dales.
The language used in pre-Roman and Roman times was Common Brittonic. During the Early Middle Ages, the Cumbric language developed. Little evidence of Cumbric remains, so it is difficult to ascertain whether or not it was distinct from Old Welsh. The extent of the region in which Cumbric was spoken is also unknown.
During Anglo-Saxon times the area was settled by Anglian peoples of Mercia and Northumbria, rather than the Saxon people of Southern England. Celtic speech remained in most areas of the Pennines longer than it did in the surrounding areas of England. Eventually, the Celtic tongue of the Pennines was replaced by early English as Anglo-Saxons and Vikings settled the area and assimilated the Celts. 
During the Viking Age Scandinavian settlers brought their language, Old Norse. The fusion of Norse and Old English was important in the formation of Middle English and hence Modern English, and many individual words of Norse descent remain in use in local dialects, such as that of Yorkshire, and in local place names.
The folklore and customs are mostly based on Celtic, Anglo-Saxon and Viking customs and folklore.[ citation needed] Many customs and stories have their origin in Christianised pagan traditions.[ citation needed] In the Peak District, a notable custom is well dressing, which has its origin in pagan traditions that became Christianised. 
Flora in the higher Pennines is adapted to moorland and subarctic landscapes and climates. The flora found there can be found in other areas of moorland in Northern Europe and some species are also found in areas of tundra. In the Pennine millstone grit areas above an altitude of 900 feet (270 m) the topsoil is so acidic, pH 2 to 4, that it can grow only bracken, heather, sphagnum, and coarse grasses  such as cottongrass, purple moor grass and heath rush.  As the Ice age glacial sheets retreated c. 11,500 BC trees returned and archaeological palynology can identify their species. The first trees to settle were willow, birch and juniper, followed later by alder and pine. By 6500 BC temperatures were warmer and woodlands covered 90% of the dales with mostly pine, elm, lime and oak. On the limestone soils the oak was slower to colonize and pine and birch predominated. Around 3000 BC a noticeable decline in tree pollen indicates that neolithic farmers were clearing woodland to increase grazing for domestic livestock, and studies at Linton Mires and Eshton Tarn find an increase in grassland species.  On poorly drained impermeable areas of millstone grit, shale or clays the topsoil gets waterlogged in winter and spring. Here tree suppression combined with the heavier rainfall results in blanket bog up to 7 ft (2 m) thick. The erosion of peat still exposes stumps of ancient trees. 
"In digging it away they frequently find vast fir trees, perfectly sound, and some oaks ..."
Limestone areas of the Pennines in the White Peak,  Yorkshire Dales  and Upper Teesdale  have been designated as nature reserves or Important Plant Areas by the botanical conservation charity Plantlife,  and are nationally important for their wildflowers.
Fauna in the Pennines is similar to the rest of England and Wales, but the area hosts some specialised species. Deer are found throughout the Pennines and some species of animals that are rare elsewhere in England can be found here. Arctic hares, which were common in Britain during the Ice Age and retreated to the cooler, more tundra-like uplands once the climate warmed up, were introduced to the Dark Peak area of the Peak District in the 19th century.
Large areas of heather moorland in the Pennines are managed for driven shooting of wild red grouse. The related and declining black grouse is still found in northern parts of the Pennines. Other birds whose English breeding strongholds are in the Pennines include golden plover, snipe, curlew, dunlin, merlin, short-eared owl, ring ouzel and twite,  though many of these are at the southern limit of their distributions and are more common in Scotland.
- Geography of England
- Geology of the United Kingdom
- Geology of Yorkshire
- North Pennines
- South Pennines
- Yorkshire Three Peaks
- "What are the landforms of England?". Project Britain. Archived from the original on 1 August 2016. Retrieved 25 July 2016.
- Poucher, W. A. (1946). The Backbone of England. A photographic and descriptive guide to the Pennine range from Derbyshire to Durham. Guildford and Esher: Billing and Sons Limited.
- Edwards, W.; Trotter, F. M. (1975). The Pennines and Adjacent Areas. Handbooks on the Geology of Great Britain (Third ed.). London: HMSO (published 1954). p. 1. ISBN 0-11-880720-X.
- Dudley Stamp, L (1946). "Britain's Structure and Scenery". Nature. The Fontana New Naturalist Series (1960 ed.). London and Glasgow: Collins. 158 (4023): 809. Bibcode: 1946Natur.158..809T. doi: 10.1038/158809a0. S2CID 4074834.
- Great Britain. Alan G. Ogilvie. 2 January 2014. pp. 270–271. ISBN 9781107626539. Retrieved 31 October 2017.
- Marsh, Terry (2013). Great Mountain Days in the Pennines. Cicerone. ISBN 978-1852846503. Retrieved 31 October 2017.
- Ratcliffe, Derek (2011). A Nature Conservation Review. Cambridge University Press. ISBN 978-0521203296. Retrieved 20 January 2019.
- "Writer inspired by beauty of Pennines celebrates its views". Yorkshire Post. 7 October 2008. Archived from the original on 17 October 2019. Retrieved 1 August 2020.
- "Areas of Outstanding Natural Beauty". Natural England. Retrieved 23 October 2013.
- "National Parks". Natural England. Retrieved 2 December 2007.
- "Trail stats, Pennine Way". National Trails Homepage. The Countryside Agency. Archived from the original on 13 August 2007. Retrieved 3 August 2007.
- Redmonds, George (15 March 2007), "A Major Place-Name Ignored", Names and History: People, Places, and Things, London: Hambledon & London (published 2004), pp. 65–68, ISBN 978-1-85285-426-3
- Gelling, cited by Redmonds 
- Hussey, Arthur (1853), "A Renewed Examination of 'Richard of Cirencester'", in Cave, Edward (ed.), The Gentleman's Magazine, XXXIX, London: J.B. Nichols & Son, pp. 270–273
- Bertram, Charles (1809) [First published in 1757], "Chapter XXXIII", The Description of Britain, Translated from Richard of Cirencester, Anonymously translated & annotated by Henry Hatcher, London: J. White & Co., p. 51
- Route VII: "... This province is divided into two equal parts by a chain of mountains called the Pennine Alps, which rising on the confines of the Iceni and Carnabii, near the River Trivona [ Trent], extend towards the north in a continued series of fifty miles ..." 
- Skipton, Camden said, was "hidden and enclosed among steep Hilles to Latium in Italie, which Varro supposeth to have been called because it lyeth close under the Apennine and the Alps". He went on to describe how "the North part ... riseth up and swelleth somewhat mountainous, with moores and hilles, but of no bignesse, which beginning here runs like as Apennine doth in Italie, through the middest of England ... even as far as Scotland, although oftentimes they change their name."
- Livy, History of Rome, Book V, §35.
- Livy, History of Rome, Book XXXI, §38.
- Falileyev, Alexander, ed. (2007). "Summus P(o)eninus" (PDF). Dictionary of Continental Celtic Place-Names. Aberystwyth University. Archived from the original (PDF) on 31 July 2009. Retrieved 2 May 2009.
- Lewis, Charlton T.; Short, Charles (1879). "Apenninus". A Latin Dictionary. Oxford; Medford: Clarendon Press; Perseus Digital Library. Retrieved 23 October 2013.
- Deecke, W; Nesbitt, H. A. (Translator) (1904). Italy; a popular account of the country, its people, and its institutions (including Malta and Sardinia). London; New York: Macmillan Co.; S. Sonnenschein & Co. p. 23.
- Matasović, R. (2009). Etymological Dictionary of Proto-Celtic. Leiden-Boston: Brill. ISBN 978-90-04-17336-1.
- Gunn, Peter (1984). The Yorkshire Dales. Landscape with Figures. London: Century Publishing Co Ltd. ISBN 0-7126-0370-0.
- Pidd, Helen. "Yorkshire Dales expand into Lancashire in national parks land grab". The Guardian. Retrieved 20 January 2019.
- "Landscape". Peak District National Park. Archived from the original on 14 September 2017. Retrieved 22 July 2016.
- "About the South Pennines". Retrieved 22 July 2016.
- "The Landscape of The Forest of Bowland Area Of Outstanding Natural Beauty (AONB)". Lancashire County Council. 6 June 2007. Archived from the original on 7 February 2009. Retrieved 7 December 2007.
- "Landscape". Yorkshire Dales National Park. Retrieved 22 July 2016.
- Pennines at the Encyclopædia Britannica
- Geography: Or, First Division of "The English Encyclopædia", Volume 3. Charles Knight. 1867. pp. 69–70. Retrieved 10 December 2019.
- "City Centre Conservation Area" (pdf). Derby City Council. Derby City Council. Retrieved 19 August 2018.
- Cave, Rachel (2002). "The Humber Catchment and its Coastal Area" (PDF). University of East Anglia. Archived from the original (PDF) on 2 February 2014. Retrieved 12 October 2013.
- "Great Dun Fell 2 Climatic Averages 1981–2010". Met Office. Retrieved 22 December 2012.
- page 4 and page 5, Marginal Upland Grazing Sutton Moor, Domesday Reloaded, BBC 1986
- "A landscape through time". Out of Oblivion. Retrieved 5 August 2011.
- "North Pennines". My Pennines. Retrieved 15 April 2016.
- "A place called home". Peak District. 2009. Archived from the original on 19 May 2009. Retrieved 5 November 2017.
- "Peak District National Park: Study Area". Peak District National Park. 2003. Archived from the original on 20 June 2005. Retrieved 5 November 2017.
- Waugh, D. (2000). Geography An Integrated Approach (3rd ed.). Nelson Thornes. ISBN 0-17-444706-X.
- "South Pennines". Pennine Prospects. Retrieved 5 November 2017.
- "£1.2m fund available to South Pennines farm businesses". Farmers Weekly. Retrieved 5 November 2017.
- "Farming". Forest of Bowland. Forest of Bowland. Retrieved 3 January 2018.
- Szymanski, Rosy (2016). Local Heritage, Global Context: Cultural Perspectives on Sense of Place. Routledge. ISBN 9781351921640. Retrieved 3 January 2018.
- "Economy". Yorkshire Dales National Park. Retrieved 5 November 2017.
- "Economy and business". North Pennines AONB. Archived from the original on 7 November 2017. Retrieved 1 August 2020.
- Transpennine Crossings, Sabre roads, retrieved 14 August 2013
- "Standedge Tunnel & Visitor Centre: Opening times and prices". Canal and River Trust. Archived from the original on 7 September 2013. Retrieved 15 August 2013.
- "The Woodhead Route". Railways of Britain. Archived from the original on 2 March 2008. Retrieved 27 January 2008.
- History, settle-carlisle.co.uk, retrieved 15 August 2013
- "Timetables – The Settle Carlisle Railway". The Settle–Carlisle Railway. 1010. Retrieved 1 August 2020.
- Welcome to the Trans Pennine Trail, transpenninetrail.org.uk, archived from the original on 19 October 2013, retrieved 14 August 2013
- Leith, Dick (2005). A Social History of English. Routledge. p. 15. ISBN 113471145X. Retrieved 9 November 2017.
- Fox, Susie (2012). Ritual Journeys With Great British Goddesses. Trafford Publishing. p. 148. ISBN 978-1466946521. Retrieved 9 November 2017.
- Kelsall, Dennis; Kelsall, Jan (2008). The Yorkshire Dales: South and West. Milnthorpe: Cicerone. p. 26. ISBN 978-1-85284-485-1.
- White, Robert (2005) . The Yorkshire Dales, A landscape Through Time (new ed.). Ilkley, Yorkshire: Great Northern Books. ISBN 1-905080-05-0.
- Young, Arthur (1770). A Six Months' Tour of the North of England. W. Strahan. p. 270.
- "Deep Dale". Plantlife. Retrieved 1 August 2020.
- "Yorkshire Dales Limestone IPA". Plantlife. Retrieved 1 August 2020.
- "Moor House to Upper Teesdale IPA". Plantlife. Retrieved 1 August 2020.
- "Important Plant Areas". Plantflie. Retrieved 1 August 2020.
- Gibbons; et al. (1993). The New Atlas of Breeding Birds in Britain and Ireland: 1998–1991. T & A D Poyser. ISBN 0-85661-075-5.
|Wikimedia Commons has media related to Pennines (hills).|