86-722: Hertfordshire Rail Tours was a company that operated charter trains in the United Kingdom. Founded in Hertfordshire by John Farrow, most of its trains started from London Terminals . The company was purchased by FM Rail in September 2005. FM Rail went into liquidation in December 2006, and the Hertfordshire Rail Tours business passed to Victa Westlink Rail , a joint venture between Victa Railfreight and Westlink. In August 2007
172-514: A distinctively bow-shaped, three-arched, bridge to be built over the River Lea ( The like of which had not been seen before ), at Bow, the first bridge over the lower Lea. The lower Lea was at that time a wide, tidal and unchannelled river, so the construction of the bridge allowed a far greater degree of social and economic integration between Essex on one side and Middlesex (including the City of London) on
258-596: A zeppelin over Great Britain during WW1 happened in Cuffley. From the 1920s until the late 1980s , the town of Borehamwood was home to one of the major British film studio complexes, including the MGM-British Studios . Many well-known films were made here including the first three Star Wars movies ( IV , V , & VI ). The studios generally used the name of Elstree . American director Stanley Kubrick not only used to shoot in those studios but also lived in
344-532: A Blue Pullman from the beginning of 2006, reminiscent of the Blue Pullman diesel multiple units that operated between London Paddington and Bristol during the 1960s. With none of the original stock preserved, it had to provide a new fleet, which consisted of a rake of air-conditioned Mark 2 carriages fitted with Pullman style lighting, topped and tailed by Class 47 diesel locomotives. As no Mark 2 kitchen cars were built, two Mark 1 carriages were included in
430-530: A Romano-British soldier, took the place of a Christian priest and was beheaded on Holywell Hill. His martyr's cross of a yellow saltire on a blue field is reflected in the flag and coat of arms of Hertfordshire as the yellow field to the stag or Hart representing the county. He is the Patron Saint of Hertfordshire. With the departure of the Roman Legions in the early 5th century , the now-unprotected territory
516-425: A historic centre, with many Tudor and Stuart era buildings interspersed amongst more contemporary structures. Hertfordshire's eastern regions are predominantly rural and arable, intermixed with villages and small to medium-sized towns. Royston, Buntingford and Bishop's Stortford , along with Ware and the county town of Hertford are major settlements in this regard. The physical geography of eastern Hertfordshire
602-668: A mix of post-WWII new towns and older/more historical locales. The City of St. Albans is an example of a historical settlement, as its cathedral and abbey date to the Norman period, and there are ruins from the Roman settlement of Verulamium nearby the current city centre. Stevenage is a mix of post-WWII new town planning amidst its prior incarnation as a smaller town. The Old Town in Stevenage represents this historic core and has many shops and buildings reflecting its pre-WWII heritage. Hitchin also has
688-741: A result. The source of the Lea is usually said to be at Well Head inside Waulud's Bank , a neolithic henge at Leagrave Common in Luton , Bedfordshire , although just downstream the river is joined by Houghton Brook , a stream that starts 2 miles (3 km) further west in Houghton Regis . After passing through Luton, the young river passes through the Luton Hoo estate and, six miles from its source, enters Hertfordshire . The river then flows east-south-east through Harpenden , Wheathampstead – once capital of
774-753: A shipyard which straddled either side of the Lea at its confluence with the Thames. The 2012 Olympics was focused in the Queen Elizabeth Olympic Park on the banks of the Lea, and its main Stadium, on an island between two branches of the river, is now home to West Ham United. The Lee Valley White Water Centre in Hertfordshire is another sporting legacy of the games. Various versions of the nursery rhyme London Bridge Is Falling Down make reference to Bow Bridge. The oldest known version could be that recalled by
860-465: Is a ceremonial county in the East of England and one of the home counties . It borders Bedfordshire to the north-west, Cambridgeshire to the north-east, Essex to the east, Greater London to the south and Buckinghamshire to the west. The largest settlement is Watford , and the county town is Hertford . The county has an area of 634 square miles (1,640 km ) and had a population of 1,198,800 at
946-502: Is also the UK base of multi-nationals Hilton Worldwide , TotalEnergies , TK Maxx , Costco , JJ Kavanagh and Sons , Vinci and Beko . The 2006 World Golf Championship and the 2013 Bilderberg Conference , took place at The Grove hotel . Warner Bros. owns and runs its main UK base since the 2000s, Warner Studios, in Leavesden, Watford. Rickmansworth hosts Skanska . Most of the county
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#17328758422101032-670: Is derived). The River Lea flows through the old brewing and malting centre of Ware , and consequently transport by water was for many years a significant industry based there. Barley was transported into Ware, and malt out via the river, in particular to London. Bargemen born in Ware were given the "freedom of the River Thames" — avoiding the requirement of paying lock dues — as a result of their transport of fresh water and food to London during The Great Plague of 1665–66. A local legend says that dead bodies were brought out of London at that time via
1118-593: Is less elevated than the far west, but with lower rising hills and prominent rivers such as the Stort . This river rises in Essex and terminates via a confluence with the Lea near to Ware. Apart from the Lea and Stort, the River Colne is the major watercourse in the county's west. This runs near Watford and Radlett, and has a complex system/drainage area running south into both Greater London and Buckinghamshire. An unofficial status,
1204-560: Is served by BBC London & ITV London , however Stevenage and North Hertfordshire is served by BBC East & ITV Anglia . Some northwestern parts of the county around Tring can also receive BBC South and ITV Meridian . Local radio for the county is provided by BBC Three Counties Radio , BBC Radio Cambridgeshire (covering Royston ), Heart Hertfordshire , Greatest Hits Radio Bucks, Beds and Herts (formerly Mix 96), Mix 92.6 (formerly Radio Verulam St. Albans) and Community Radio Dacorum (Hemel Hempstead). Local newspapers in
1290-628: Is supplied to London from Ware , using the New River built by Hugh Myddleton and opened in 1613. Local rivers, although small, supported developing industries such as paper production at Nash Mills . Hertfordshire affords habitat for a variety of flora and fauna. A bird once common in the shire is the hooded crow , the old name of which is the eponymous name of the regional newspaper, the Royston Crow published in Royston . A product, now largely defunct,
1376-468: Is the bedrock of much of the county provides an aquifer that feeds streams and is also exploited to provide water supplies for much of the county and beyond. Chalk has also been used as a building material and, once fired, the resultant lime was spread on agricultural land to improve fertility. The mining of chalk since the early 18th century has left unrecorded underground galleries that occasionally collapse unexpectedly and endanger buildings. Fresh water
1462-503: Is usually Luye or Leye . It seems to be derived from a Celtic (brythonic) root lug -meaning 'bright or light' which is also the derivation of a name for a deity, so the meaning may be 'bright river' or 'river dedicated to the god Lugus '. A simpler derivation may well be the Brythonic word cognate with the modern Welsh "Li" pronounced "Lea" which means a flow or a current. Much of the middle Lea were historically known as 'Mereditch',
1548-490: The 2021 census . After Watford (131,325), the largest settlements are Hemel Hempstead (95,985), Stevenage (94,470) and the city of St Albans (75,540). For local government purposes Hertfordshire is a non-metropolitan county with ten districts beneath Hertfordshire County Council . Elevations are higher in the north and west, reaching more than 800 feet (240 m) in the Chilterns near Tring . The county centres on
1634-504: The Battle of Bow Bridge , the Royalists headed for Colchester and were besieged there . During WWI, parts of London on either side of the Lea were badly hit by German Army and Navy airship raids. It is believed the crews mistook the extensive reservoir chain for the Thames and released their bombs on what they took to be central London. The ecological, landscape and recreational importance of
1720-504: The Boundary Commission treats the Thames and Lea as London's major internal barriers. It will not allow a new or altered constituency that spans either river, viewing such a construct as artificial and not reflective of local communities or identities. They have compromised on this further south, on the lower Lea, where the quality and quantity of cross-river links is much greater, and the communities on either side better integrated as
1806-530: The Catuvellauni tribe – through the narrow green gap between the new towns of Hatfield and Welwyn Garden City , and on to the county town of Hertford . At Hertford the shallow river turns briefly north before turning to head due south, and here the river and its surrounding areas change significantly. Around Hertford, the Lea is joined by a number of major tributaries: the Mimram , Beane , Rib , Ash , and then
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#17328758422101892-681: The Chiltern Hills surrounding Tring , Berkhamsted and the Ashridge estate. This Area of Outstanding Natural Beauty runs from near Hitchin in the north to Berkshire and Oxfordshire. Many of the county's major settlements are in the central, northern and southern areas, such as Watford, Hemel Hempstead, Kings Langley , Rickmansworth , St. Albans , Harpenden , Redbourn , Radlett , Borehamwood , Potters Bar , Stevenage, Hatfield , Welwyn and Welwyn Garden City, Hitchin , Letchworth and Baldock. These are all small to medium-sized locations, featuring
1978-601: The Chilterns , clayland buffer zone countryside of Braughing and the Hadhams across to ancient hornbeam coppices west of the upper Lea valley. The county has sweeping panoramas of chalklands near Royston , Baldock , Hexton and Tring . Large parts of the county are used for agriculture. Some quarrying of sand and gravel occurs around St Albans. In the past, clay has supplied local brick-making and still does in Bovingdon , just south-west of Hemel Hempstead. The chalk that
2064-602: The Congreve Rocket Factory on the site of Stratford Langthorne Abbey . Improvements were made to the river from 1424, with tolls being levied to compensate the landowners, and in 1571, there were riots after the extension of the River was promoted in a private bill presented to the House of Commons . By 1577, the first lock was established at Waltham Abbey and the river began to be actively managed for navigation. The New River
2150-580: The Counties (Detached Parts) Act 1844 which eliminated exclaves ; amended when, in 1965 under the London Government Act 1963 , East Barnet Urban District and Barnet Urban District were abolished, their area was transferred to form part of the present-day London Borough of Barnet and the Potters Bar Urban District of Middlesex was transferred to Hertfordshire. The highest point in
2236-560: The ICF Canoe Slalom World Championships twice. First in 2015 , and most recently in 2023 , where Britain topped the medal table with 5 golds. River Lea The River Lea ( / ˈ l iː / LEE ) is in the East of England and Greater London . It originates in Bedfordshire , in the Chiltern Hills , and flows southeast through Hertfordshire , along the Essex border and into Greater London , to meet
2322-616: The Kingdom of the East Saxons and its Middle Saxon Province . The whole of the Lea was subsequently used as the boundary between English-ruled territory to the west and the Danelaw , established in the late 9th century, to the east. From around the ninth or tenth century, and the establishment of counties in this part of England, the Lea-Stort line has formed the historic boundary between Essex to
2408-567: The Lea Valley . The term River Lea is Cockney rhyming slang for tea. The line of the Lea, and its major tributary, the Stort, has long been used as a political boundary. In the Iron Age the Lea and Stort valleys formed a hotly contested frontier zone between the Catuvellauni to the west and the eastern Trinovantes . The two rivers are assumed to have been the boundary between the core territory of
2494-459: The Lee Navigation . This stimulated much industry along its banks. The navigable River Stort , the main tributary, joins it at Hoddesdon . While the lower Lea remains somewhat polluted, its upper stretch and tributaries, classified as chalk streams , are a major source of drinking water for London. An artificial waterway known as the New River , opened in 1613, abstracts clean water away from
2580-569: The Middle Lea . During the Middle Ages , Temple Mills , Abbey Mills , Old Ford and Bow were the sites of water mills (mainly in ecclesiastic ownership) that supplied flour to the bakers of Stratforde-atte-Bow, and hence bread to the City. It was the channels created for these mills that caused the Bow Back Rivers to be cut through the former Roman stone causeway at Stratford (from which the name
2666-467: The Prescott Channel to maintain water levels on the Lea, within the park at a depth of 2 metres (7 ft). This allowed access to the site by 350–tonne barges with the aim that at least half of the material required for construction could be delivered or removed by water. In January 2024, the River Lea burst its banks as Hackney Wick residents tell of 'knee-high' flood water. Millfields Park on
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2752-537: The Queen Elizabeth Olympic Park . In that park, and just to the south of it, the river's course splits, running almost entirely in man-made channels, the Bow Back Rivers . These channels were once much more numerous and originally created to power water mills including, at the southern end, the restored tidal mill called Three Mills . The area around the Bow Back Rivers subsequently became a thriving industrial zone. Around Bow Creek , major industry prevailed, including
2838-540: The River Thames at Bow Creek . It is one of the largest rivers in London and the easternmost major tributary of the Thames. The river's significance as a major east–west barrier and boundary has tended to obscure its importance as north–south trade route. Below Hertford the river has since medieval times had alterations made to make it more navigable for boats between the Thames and eastern Hertfordshire and Essex , known as
2924-427: The Stort . This extra volume of water has created a broad flood plain with sometimes steep hills on either side. The river passes through this valley in several channels, which are a result of both human intervention and natural causes. The increased flow made the river navigable from Hertford, a situation improved by the creation of the Lee Navigation , a deep canal which begins at Hertford Castle Weir . The Stort,
3010-521: The Thames Ironworks , Bromley-by-Bow Gasworks and West Ham Power Station . In the 1960s and 1970s, changing economic conditions led to a steep decline and deindustrialisation along this section of the Lea. The river was historically tidal as far north as Hackney Wick , but now the tide is held back by the Bow Locks between Bromley-by-Bow and West Ham. Although watercraft can follow the Lea down to
3096-488: The ecosystem , but also leads to de-oxygenation of the water. Dumping, litter and microplastics are a major problem on the Lea with much of this waste arriving in the river in sewage. In April 2021, Hackney Council wrote to the Environment Agency calling for action to address sewage discharge and pollution in the river. In November 2021, local volunteers stated they were removing 100kg of plastic pollution from
3182-572: The Anglo-Saxons: "ford", "ton", "den", "bourn", "ley", "stead", "ing", "lett", "wood", and "worth", are represented in this county by Hertford, Royston, Harpenden, Redbourn, Cuffley, Wheathampstead, Tring, Radlett, Borehamwood and Rickmansworth. There is evidence of human life in Hertfordshire from the Mesolithic period . It was first farmed during the Neolithic period and permanent habitation appeared at
3268-576: The Hertfordshire Rail Tours business was sold to the Stobart Group and renamed Stobart Rail Tours. The tour programme was scaled back and relaunched as the Stobart Pullman , using Direct Rail Services Class 47s and Mark 3 carriages. It ceased in July 2008. With the market for charter trains appearing buoyant and the company wishing to develop into more lucrative fields, FM Rail decided to re-introduce
3354-450: The Lea at Hackney, is the reputed site of a victory of Aescwine of Essex over Octa of Kent in 527, which allowed Aescwine to become the first King of Essex . However, the historicity of these events and the very existence of Aescwine are disputed. Somewhere between 878 and 890, the Treaty of Alfred and Guthrum was drawn up that amongst other things used the course of the Lea to define
3440-461: The Lower Lea every month. Water extraction, for drinking water, farming and industry, has led to a reduction in river flow impacting wildlife and concentrating the pollutants present in the remaining river water. Projects such as that led by Thames21 installing reedbeds help to remove pollutants whilst oxygenating the water, as well as creating habitat for the likes of water voles and improving
3526-622: The Roses, St. Albans was the scene of two major battles between the Lancastrians and the Yorkists. In Tudor times, Hatfield House was often frequented by Queen Elizabeth I. Stuart King James I used the locale for hunting and facilitated the construction of a waterway, the New River , supplying drinking water to London. As London grew, Hertfordshire became conveniently close to the English capital; much of
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3612-534: The Thames, it is generally more practical to follow the Limehouse Cut (which meets the Lea at Bow Locks) down to Limehouse Basin , and use the Limehouse Basin Lock to join the Thames. The communities on the west side of the lower Lea include Hackney , Bow and Bromley-by-Bow . On the east side, they include southern parts of Walthamstow , then Leyton , Stratford and West Ham . The last few miles of
3698-796: The UK Cereal Partners factory and in pharmaceuticals it hosts Roche UK's headquarters (subsidiary of the Swiss Hoffman-La Roche ). GlaxoSmithKline has plants in Ware and Stevenage . Hemel Hempstead has large premises of Dixons Carphone . The National Pharmacy Association (NPA), the trade association for UK pharmacies, is based in St Albans . Kings Langley has the plant-office of Pure , making DAB digital radios . Watford hosts national companies such as J D Wetherspoon , Camelot Group , Bathstore , and Caversham Finance (BrightHouse). It
3784-465: The Unready . A century later, William of Normandy received the surrender of some senior English Lords and Clergy at Berkhamsted , before entering London unopposed and being crowned at Westminster . Hertfordshire was used for some of the new Norman castles at Bishop's Stortford , and at King's Langley , a staging post between London and the royal residence of Berkhamsted . The Domesday Book recorded
3870-516: The aesthetics of the man-made concrete sections of the canalised river. In their early days, Tottenham Hotspur played their games at Tottenham Marshes on the Middle Lea while Leyton Orient have had a number of home grounds in the Lower Lea Valley , with both having their current grounds within a mile of the river. West Ham United was established as the works team of the Thames Ironworks ,
3956-442: The area that year, ahead of the 2012 Olympic Games . The river is threatened by pollution, with sewage frequently discharged into the river as well as less common events causing major damage, such as an oil leak in 2018, or the toxic runoff from a warehouse fire in 2019. The sewage pollution, as well as that of fertiliser washed in from agricultural fields causes eutrophication , an excess of nutrients, which not only unbalances
4042-517: The area until his death. Big Brother UK and Who Wants to Be a Millionaire? have been filmed there. EastEnders is filmed at Elstree. Hertfordshire has seen development at Warner Bros. Studios, Leavesden ; the Harry Potter series was filmed here and the 1995 James Bond film GoldenEye . On 17 October 2000, the Hatfield rail crash killed four people with over 70 injured. The crash exposed
4128-559: The area was owned by the nobility and aristocracy , this patronage helped to boost the local economy. However, the greatest boost to Hertfordshire came during the Industrial Revolution , after which the population rose dramatically. In 1903, Letchworth became the world's first garden city and Stevenage became the first town to redevelop under the New Towns Act 1946 ( 9 & 10 Geo. 6 . c. 68). The first shooting-down of
4214-588: The beginning of the Bronze Age . This was followed by tribes settling in the area during the Iron Age . Following the Roman conquest of Britain in AD 43 , the Catuvellauni tribe accepted peace and adapted to the Roman life; resulting in the development of several new towns, including Verulamium (St Albans) where in c. 293 the first recorded British martyrdom is traditionally believed to have taken place. Saint Alban ,
4300-568: The border between the Danes and the English. In 894, a force of Danes sailed up the river to Hertford, and in about 895 they built a fortified camp, in the higher reaches of the Lea, about 20 miles (32.2 km) north of London. Alfred the Great saw an opportunity to defeat the Danes and dug a new channel to lower the level of the river, leaving the Danes stranded. In 1216, during the First Barons' War ,
4386-417: The boundaries of the London Boroughs of Haringey and Hackney and form part of a broad undeveloped green space, a mile (800 m) wide in places, which extends deep into London. On Hackney's northern edge, the Lea shifts to a south-south-easterly direction, the reservoirs end, but the broad green corridor continues as the river passes through Walthamstow Marshes , Leyton Marshes , Hackney Marshes and
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#17328758422104472-409: The county are: Waltham Cross , Broxbourne , is the location of the Lee Valley White Water Centre , a purpose-built venue opened in 2010 for the 2012 Summer Olympics . The site consists of two white water courses; one 300m Grade IV "Olympic" run; and one 160m Grade III "legacy" run. During the games the center was the venue for the canoe and kayak slalom events . Lee Valley has since hosted
4558-407: The county as having nine hundreds . Tring and Danais became one— Dacorum —from Danis Corum or Danish rule harking back to a Viking not Saxon past. The other seven were Braughing , Stevenage , Cashio , Buntingford , Hertford , Hitchin and Odsey . In the later Plantagenet period, St. Albans Abbey was an initial drafting place of what was to become Magna Carta . And in the later Wars of
4644-459: The county is at 244 m (801 ft) ( AOD ) on the Ridgeway long distance national path, on the border of Hastoe near Tring with Drayton Beauchamp , Buckinghamshire. At the 2011 census, among the county's ten districts, East Hertfordshire had the lowest population density (290 people per km ) and Watford the highest (4210 per km ). Compared with neighbouring Bedfordshire and Buckinghamshire, Hertfordshire lacks large towns or cities on
4730-417: The dedicated blue livery, would be hauled by a GB Railfreight Class 87 if the entire working was due to be under the wires. The Blue Pullman carriages passed to Cotswold Rail , which re-launched the service in February 2007. Hertfordshire Hertfordshire ( / ˈ h ɑːr t f ər d ʃ ɪər / HART -fərd-sheer or /- ʃ ər / -shər ; often abbreviated Herts )
4816-416: The east and Hertfordshire and Middlesex to the west. Within London the river is always used as a boundary between London Boroughs - which in turn inherit more ancient county and parish boundaries which also used the Lea as a boundary. Between 1889 and 1965, the lower Lea was the eastern boundary of the County of London with Essex . When reviewing the boundaries of London's parliamentary constituencies,
4902-483: The edge of Hemel Hempstead. Hertfordshire is located in the south-eastern part of England and is the county immediately north of London. It is officially part of the East of England region, a mainly statistical unit . To the east is Essex , to the west is Buckinghamshire and to the north are Bedfordshire and Cambridgeshire . A significant minority of the population across all districts commute to Central London . The county's boundaries were roughly fixed by
4988-427: The first element deriving from the Old English ‘gemaera’, meaning boundary. This was due to that section of the river’s role as the dividing line between territories, for instance separating Middlesex and Essex. By the 20th century 'Mereditch' had evolved to 'Mare Dyke' and referred to just one channel of the river between Chingford and Enfield . The channel was replaced by parts of the Lee Valley Reservoir Chain in
5074-459: The future Louis VIII of France besieged Hertford Castle for a month, leading to its surrender. He only held the castle for a relatively short time as he lost the war soon after. In 1648 during the second English Civil War a Royalist force crossed the Thames from Greenwich and hoped to cross Bow Bridge, over the Lea and into Essex. After inconclusive clashes with the Tower Hamlets Militia and other Parliamentarian forces, an engagement known as
5160-465: The headwaters and upper valleys of the rivers Lea and the Colne ; both flow south and each is accompanied by a canal. Hertfordshire's undeveloped land is mainly agricultural and much of the county is covered by the Metropolitan green belt . Since 1903, Letchworth has served as the prototype garden city while Stevenage became the first town to expand under post-war Britain 's New Towns Act 1946 ( 9 & 10 Geo. 6 . c. 68). Services have become
5246-429: The largely rural Essex bank, and then Chingford and Walthamstow in east London. South of Hertford, the river is lined by lakes; to the north these are primarily flooded former gravel pits but in London they are reservoirs: the 13 reservoirs of the Lee Valley Reservoir Chain , fed by the branches of the river known as the River Lee Flood Relief Channel and the River Lee Diversion . These reservoirs come to an end on
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#17328758422105332-445: The largest sector of the county's economy. The county's landmarks span many centuries, ranging from the Six Hills in Stevenage built by local inhabitants during the Roman period, to Leavesden Film Studios . The volume of intact medieval and Tudor buildings surpasses London, in places in well-preserved conservation areas , especially in St Albans , which includes remains of the Roman town of Verulamium . In 913, Hertfordshire
5418-434: The marshes known as Wanstead Slip (now in Leyton). The route then continued through Essex to Colchester . At this time, the Lea was a wider river, and the tidal estuary stretched as far as Hackney Wick . Evidence has been found of a late Roman settlement at Old Ford, dating from the 4th and 5th centuries. In 1110, Matilda , wife of Henry I , reputedly took a tumble at the ford, on her way to Barking Abbey and ordered
5504-416: The mid 20th century. The River Lea is the major component in a number of place-names, including Leagrave , the suburb of Luton where the source of the river is located, and of Luton and Leyton : both mean "farmstead on the River Lea" . The spelling Lea predominates west (upstream) of Hertford , but both spellings ( Lea and Lee ) are used from Hertford to the River Thames . The Lee Navigation
5590-423: The midst of the Norse invasions, Hertfordshire was on the front lines of much of the fighting. King Edward the Elder , in his reconquest of Norse-held lands in what was to become England , established a " burh " or fort in Hertford, which was to curb Norse activities in the area. His father, King Alfred the Great , established the River Lea as a boundary between his kingdom and that of the Norse lord Guthrum , with
5676-403: The most important tributary of the Lea, joins a short distance from Hertford at Feildes Weir , and is itself navigable as far upstream as Bishops Stortford . The Hertford East railway line passes along the west side of the Lea's flood plain, from Hertford to Tottenham, improving the accessibility of the area and contributing to the ribbon development that made the character of the west side of
5762-474: The north and eastern parts of the county being within the Danelaw . There is little evidence however of Norse placenames within this region, and many of the Anglo-Saxon features remained intact to this day. The county however suffered from renewed Norse raids in the late 10th to early 11th centuries, as armies led by Danish kings Swein Forkbeard and Cnut the Great harried the country as part of their attempts to undermine and overthrow English king Athelred
5848-436: The north and west of the county, forming the Chiltern Hills and the younger Palaeocene , Reading Beds and Eocene , London Clay which occupy the remaining southern part. The eastern half of the county was covered by glaciers during the Ice Age and has a superficial layer of glacial boulder clays . Much of the west – and much more in the east – have richly diverse countryside. These range from beech woods of
5934-486: The occasional seal . Some boat trippers reported observing on 5 August 2005 a Canada goose being pulled underwater very quickly. The London Wildlife Trust suggested that this was most likely caused by a pike . In 2011, Mike Wells claimed that he saw a "goose go vertically down" in the river. Again a pike or mink was suggested as most likely. Vice Magazine suggested that Wells' story may have been invented to publicise authorities' attempts to evict houseboats from
6020-419: The other than had been possible before. Lea Bridge , the second bridge over the lower Lea was built after 1757, to replace the pre-existing ferry. It connected Clapton to the west, and Leyton and Walthamstow to the east. The Iron Bridge carrying the Barking Road over the river to Canning Town was built in 1810. There are significantly more crossings over the more central Lower Lea , than there are over
6106-405: The purple star-shaped flower with yellow stamens, the Pasqueflower is among endemic county flowers . The rocks of Hertfordshire belong to the great shallow syncline known as the London Basin . The beds dip in a south-easterly direction towards the syncline's lowest point roughly under the River Thames . The most important formations are the Cretaceous Chalk , exposed as the high ground in
6192-461: The river and its surrounding land has been recognised through inclusion in a number of parks and by several planning policy designations. Much of the river lies within the Lee Valley Park . Some of the land surrounding the river has been designated as Metropolitan Green Belt or Metropolitan Open Land in order to prevent further urbanisation. The river contains fish and other wildlife such as
6278-415: The river are known as Bow Creek and the river meets the Thames between Blackwall (on the west side) and Canning Town (on the east). In the Roman era , Old Ford , as the name suggests, was the most downstream crossing point of the River Lea. This was part of a pre-Roman route that followed the modern Oxford Street , Old Street , through Bethnal Green to Old Ford and then across a causeway through
6364-602: The river for burying in Ware, but there is no evidence for this. The extensive level of waterborne trade led the historian John Stow , writing in 1603, to describe the Lea as “this pleasant and useful river”. The riverside has hosted a number of major armaments manufacturers, such as the Waltham Abbey Royal Gunpowder Mills , the Royal Small Arms Factory at Enfield Lock (which is now a housing development known as Enfield Island Village ) and
6450-518: The same town, Airbus (Defence & Space Division) produces satellites. Hatfield was where de Havilland developed the first commercial jet liner, the Comet . Now the site is a business park and new campus for the University of Hertfordshire . This major employment site notably hosts EE , Computacenter and Ocado groceries and other goods e-commerce. Welwyn Garden City hosts Tesco 's UK base, hosts
6536-409: The scale of Luton or Milton Keynes , whose populations exceed 200,000, but its overall population (1.2 million in 2021) is greater than those of the two aforementioned counties. The River Lea near Harpenden runs through Wheathampstead , Welwyn Garden City, Hertford, Ware, and Broxbourne before reaching Cheshunt and ultimately the River Thames. The far west of the county is the most hilly, with
6622-509: The set. The Mark 2s were painted in the original livery of nanking blue with a white band around the windows, but, as the Mark 1s had much larger windows, they were simply painted in plain blue. The first outing of the Blue Pullman was a dining excursion from Kings Cross and back via Ely and Peterborough on 12 January 2006. The service, although normally worked by two Class 47s also painted in
6708-575: The shortcomings of Railtrack , and resulted in speed restrictions and major track replacement. On 10 May 2002, seven people died in the fourth of the Potters Bar rail accidents ; the train was travelling at high speed when it derailed and flipped into the air when one of the carriages slid along the platform where it came to rest. In early December 2005, there were explosions at the Hertfordshire Oil Storage Terminal at Buncefield on
6794-457: The succeeding centuries. In 1766, work also began on the Limehouse Cut to connect the river, at Bromley-by-Bow , with the Thames at Limehouse Basin . The Waterworks River , a part of the tidal Bow Back Rivers , has been widened by 8 metres (26 ft) and canalised to assist with construction of the Olympic Park for the 2012 Summer Olympics . In 2009, Three Mills Lock was installed on
6880-508: The upper stretch of the river near Hertford for drinking. The Lea's origin in the Chilterns contributes to the extreme hardness (high mineral content) of London tap water. The name of the River Lea was first recorded in the 9th century, although is believed to be much older. Spellings from the Anglo-Saxon period include Lig(e)an in 880 and Lygan in 895, and in the early medieval period it
6966-409: The valley much more developed than the east. Just after Hertford, the river passes the medieval river port of Ware and the Hertfordshire bank soon becomes entirely developed. On the west bank the river passes Hoddesdon , Broxbourne and Cheshunt in Hertfordshire; then Enfield , Edmonton , Tottenham and Tottenham Marshes in north London. On the eastern side the river passes Waltham Abbey on
7052-548: Was watercress , based in Hemel Hempstead and Berkhamsted supported by reliable, clean chalk rivers. This is a table of trends of regional gross value added of Hertfordshire at current basic prices with figures in millions of British Pounds Sterling. Hertfordshire has the main operational and/or headquarters UK site of some very large employers. Clockwise from north: In Stevenage (a subsidiary of: BAE Systems , Airbus and Finmeccanica ) MBDA , develops missiles . In
7138-498: Was constructed in 1613 to take clean water to London, from the Lea and its catchment areas in Hertfordshire and bypass the polluting industries that had developed in the Lea's downstream reaches. The artificial channel further reduced the flow to the natural river and by 1767 locks were installed below Hertford Castle Weir on the canalised part of the Lea, now the Lee Navigation with further locks and canalisation taking place during
7224-497: Was established by Acts of Parliament and only that spelling is used in this context. The Lee Valley Regional Park Authority also uses this spelling for leisure facilities. However, the spelling Lea is used for road names, locations and other infrastructure in the capital, such as Leamouth , Lea Bridge , the Lea Valley Walk and the Lea Valley lines (railway). This spelling is also used in geology, archaeology, etc. to refer to
7310-631: Was invaded and colonised by the Anglo-Saxons . By the 6th century, the majority of the modern county was part of the East Saxon kingdom. This relatively short-lived kingdom collapsed in the 9th century, ceding the territory of Hertfordshire to the control of the West Anglians of Mercia . The region finally became an English shire in the 10th century, on the merger of the West Saxon and Mercian kingdoms. In
7396-628: Was the area assigned to a fortress constructed at Hertford under the rule of Edward the Elder . Hertford is derived from the Anglo-Saxon heort ford, meaning deer crossing (of a watercourse). The name Hertfordshire is first recorded in the Anglo-Saxon Chronicle in 1011. Deer feature in many county emblems. Many of the names of the current settlements date back to the Anglo-Saxon period, with many featuring standard placename suffixes attributed to
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