Box Hill, Surrey
Box Hill is a summit of the North Downs in Surrey, approximately 30 km (19 mi) south-west of London. The hill gets its name from the ancient box woodland found on the steepest west-facing chalk slopes overlooking the River Mole. The western part of the hill is owned and managed by the National Trust, whilst the village of Box Hill lies on higher ground to the east. The highest point is Betchworth Clumps at 224 m (735 ft) above OD, although the Salomons Memorial (at 172 metres) overlooking the town of Dorking is the most popular viewpoint.
|Part of the Mole Gap to Reigate Escarpment SSSI|
IUCN category IV (habitat/species management area)
Box Hill viewed from the south.
Photograph taken from Betchworth Park Golf Course.
|Nearest town||Dorking, Surrey, England|
|Area||11 km2 (4.2 sq mi)|
|Elevation||224 m (735 ft) |
|Prominence||49 m (161 ft)|
|Parent range||North Downs|
|Topo map||OS Landranger 187|
|Age of rock||Cretaceous and Eocene|
|Type of rock||Chalk and Clay-with-Flints|
Box Hill lies within the Surrey Hills Area of Outstanding Natural Beauty and forms part of the Mole Gap to Reigate Escarpment Site of Special Scientific Interest. The north- and south-facing slopes support an area of chalk downland, noted for its orchids and other rare plant species. The hill provides a habitat for 40 species of butterfly, and has given its name to a species of squash bug, now found throughout south-east England.
An estimated 850,000 people visit Box Hill each year. The National Trust visitors' centre provides both a cafeteria and gift shop, and the panoramic views of the western Weald may be enjoyed from the North Downs Way, a long-distance footpath that runs along the southern escarpment. Box Hill featured prominently on the route of the 2012 Summer Olympics cycling road race events (the men doing nine circuits and the women doing two circuits).
- 1 Geography
- 2 History
- 3 Geology
- 4 Ecology
- 5 Recreation
- 6 Sights
- 7 Transport Links
- 8 Cultural references
- 9 In the news
- 10 Notes
- 11 References
- 12 Bibliography
- 13 External links
Box Hill, approximately 30 km (19 mi) south-west of central London, stands at the south-eastern corner of the Mole Gap, the valley carved by the River Mole through the North Downs. Its summit, 224 metres (735 ft) above Ordnance Datum, is the 12th highest in Surrey. The western boundary of the hill is defined by the River Mole, which has cut a steep cliff, exposing the chalk bedrock. The Vale of Holmesdale lies immediately to the south, below the scarp slope. The northern and eastern boundaries are defined by dry river valleys, which were created during the last Ice Age. The total area of the hill is approximately 11 square kilometres (4.2 sq mi), of which half is owned by the National Trust.
The village of Box Hill is within the civil parish of Headley. The earliest flint cottages date from the 1800s, although much of the village was constructed in the first half of the 20th century. By 2005 there were more than 800 dwellings, of which over five hundred were mobile homes. An estimated 41% of the community is aged 60 or over. St Andrew's Church, part of the ecclesiastical parish of Headley, was consecrated in 1969 and the village hall opened in 1974
The earliest archaeological evidence of human activity on Box Hill are two Bronze Age round barrows located close to the Salomons Memorial. The larger barrow is 20 m (66 ft) in diameter and 2.2 m (7 ft 3 in) high. In medieval times the larger barrow was used as a boundary marker or mere for the parish of Mickleham. Traces of prehistoric field boundaries are visible on Burford Spur and the low flint banks on the steeper and more wooded White Hill may be contemporaneous.
An ancient trackway along the North Downs escarpment can be dated to between 600–450 BC, but has probably been in existence since the stone age and may have crossed the River Mole at a ford close to the location of the present day stepping stones. In Victorian times the route was dubbed the Pilgrims' Way and was supposedly followed by visitors to the shrines of Thomas Becket and Swithun at Canterbury and Winchester respectively.
Stane Street was constructed by the Romans in around 60-70 AD to link London (Londinium) to Chichester (Noviomagus Reginorum) on the south coast of England. The course of the road runs in a southwesterly direction across Mickleham Downs, before turning south to cross the River Mole at a ford close to the site of the Burford Bridge Hotel.
Medieval and early modern periodsEdit
The pillow mounds to the north-east of the Salomons Memorial are thought to date from the medieval period and were probably constructed as artificial warrens for rabbits. High Ashurst warren is recorded as remaining in use until the late 18th century. A second warren was probably situated close to Warren Farm in the Headley Valley and it has been speculated that the present farmhouse was originally the warrener's cottage.
The origin of the box trees growing on the hill is disputed: Several sources from the late 18th century suggest that the first box trees on the hill were planted by Thomas Howard, 21st Earl of Arundel during the reign of Charles I. Older medieval documents, however, make reference to local individuals with surnames including Atteboxe, de la Boxe and Buxeto, suggesting that box was already common in the local area by the 13th century, and it has also been observed that Thomas Howard never owned the Box Hill estate. The diarist John Evelyn records a visit to the hill in August 1655 to view "those natural bowers, cabinets and shady walks in the box copses." The close grain of the box wood made it highly prized for its timber for carving and there are numerous accounts of the sale of trees from the hill throughout the 17th and 18th centuries. At the end of the eighteenth century, imports from Portugal reduced the market value of box wood and commercial exploitation of timber from Box Hill appears to have ended with a final sale in 1797.
The hill was purchased by Thomas Hope, shortly before his death in 1831. (Hope was the owner of The Deepdene, the mansion to the east of Dorking.) The Mickleham Parish Records credit Hope's widow, Louisa de la Poer Beresford (whom he had married six years previously), with allowing "free access to the beauties of this hill," however day-trippers had been arriving in significant numbers for at least a century before that.
Developments in local transport infrastructure over the course of the 18th and 19th centuries, enabled increasing numbers to visit the area. Following the completion of the turnpike road between Leatherhead and Dorking in 1750, stagecoaches stopped regularly at the Burford Bridge Hotel. As late as 1879, a daily coach ran non-stop to Box Hill from Piccadilly with a journey time of 2.5 hours.[note 2]
The South Eastern Railway opened the first railway station in Dorking in 1849,[note 3] followed in 1867 by the London, Brighton and South Coast Railway (LBSRC), which opened the station in the village of Westhumble. The LBSCR ran dedicated excursion trains to Box Hill on Bank Holiday weekends and over 1300 day-trippers were recorded arriving at Westhumble station on 6th August 1883.
In the latter half of the 19th century, growing public concern over the ability of the British armed forces to repel an invasion (stoked, in part, by the serialisation of George Tomkyns Chesney’s 1871 novella The Battle of Dorking), prompted the government to announce the construction of thirteen fortified mobilisation centres, collectively known as the London Defence Positions. A 6-acre (2.4 ha) site was purchased from the trustees of the Hope estate by the Ministry of Defence in 1891, and construction began in 1896. Box Hill fort was laid out in the form of an infantry redoubt, typical of the period, but also included magazines for the storage of artillery ammunition. (In common with the majority of the twelve other mobilisation centres, the Box Hill fort was designed for the use of the infantry only and the stored ammunition was intended for the use of mobile field artillery which would be deployed nearby as required.) The fort is aligned on a NW-SE axis and is a reinforced concrete structure faced with brick. The building had a flat roof and is protected from artillery fire by a crescent-shaped earth blast bank, which is surrounded by an outer ditch.
A reform of defence policy by the Secretary of War Viscount Haldane in 1905 resulted in all 13 centres being declared redundant, and Box Hill Fort was sold back to the estate trustees in 1908. A metal grill has been placed over the entrance to allow bats to access to their roosts and the structure has Grade II listed status.
The proposals for a land value tax outlined by Chancellor David Lloyd George in his People's Budget of 1909 prompted the trustees of the Deepdene estate to start to sell the unimproved land on the western side of Box Hill. As a result of negotiations led by Sir Robert Hunter, Leopold Salomons of Norbury Park purchased 95 ha (230 acres) of Box Hill in 1913 for £16,000. The following year, Salomons donated the land, which included the Old Fort, Swiss Cottage and the western flank of the hill above the River Mole, to the National Trust.
Two further purchases of 28 ha (69 acres) and 102 ha (250 acres) transferred Lodge Hill and Ashurst Rough to National Trust ownership in 1921 and 1923. The Trust continued to purchase land, and by the mid-1980s the estate comprised some 500 ha (1,200 acres). The most recent additions to the Box Hill Estate include farmland at Westhumble and at the foot of the hill, purchased in the late 1990s.
During the Second World War the River Mole, comprised part of the fortified GHQ Line B. This defensive line ran along the North Downs from Farnham via Guildford to Dorking, before following the river to Horley. Between Betchworth and Box Hill, the north bank of the River Mole was stabilised and made steeper to prevent wheeled vehicles from crossing. At Boxhill Farm, where access to the river from the north bank was required for the herd of dairy cows, a row of twelve concrete cylinders were cast as an anti-tank measure. Gun mounts were also installed to protect both Boxhill and Deepdene bridges and several pillboxes were installed. The Stepping Stones at the foot of the hill were removed as an anti-invasion measure.
From 1940, Headley Court was used as the Headquarters for the VII Corps and later for the Canadian Corps and Canadian troops were billeted at High Ashurst. Bellasis House was used as training centre both for Czech agents of the Special Operations Executive and for German Prisoners of War. In preparation for D-Day, Headley Heath was used for tank and combat training by the Canadian armed forces, and Betchworth Quarry was used by the British Army in early 1944, to test the firing capabilities of Churchill tanks.
Following the war, National Trust acquired Headley Heath, a geologically distinct area of heathland which lies to the north-east of Box Hill village, in a single purchase in 1946.
The chalk which comprises the majority of Box Hill (and the rest of the North Downs), has its origins in the late Cretaceous period (approximately 100 - 66 million years ago). For the entirety of this period, south east England was covered by a warm, shallow sea in which coccolithophores, single-celled algae with small calcite skeletons, thrived. As the phytoplankton died, their calcium-rich shells were deposited on the sea bed and, over time, formed the chalk we know today.
Overlying the chalk across much of the higher ground on the hill, is a deposit of clay-with-flints. Although the origins of this layer are uncertain, the clay is thought to have been formed during several periods of glaciation and was produced by cryoturbation and decalcification of the chalk. This hypothesis is supported by the presence of flint, which is also found in the underlying strata.
The sandy deposits on Headley Heath have their origin in the Quaternary period, when south east England had begun to rise from the sea bed, a result of the same geological processes which formed the Alps in central Europe. The sand and gravels found in this area, indicate the presence of the sea shore. On Headley Heath, these deposits are thin and the chalk also comes to the surface in several places, allowing acid-loving plants to thrive alongside those that prefer alkaline conditions, producing the rare chalk heath habitat.
Quarries and lime kilnsEdit
Chalk and flint have been quarried from Box Hill and the surrounding area for many centuries. There are limited surviving examples of the incorporation of chalk blocks (or clunch) into the stonework of local buildings (including Mickleham Church). Walls made of flints, bound together by lime mortar, are particularly common in Surrey and quicklime could be produced with relative ease, by heating chalk above 825 °C (1,517 °F) in a kiln.
Evidence remains of the small-scale chalk quarrying that occurred prior to the Industrial Revolution, including chalk pits both at Warren Farm and close to the Burford Bridge Hotel. The opening of the Dorking to Reigate railway line at the bottom of the hill in 1849, enabled new quarry faces to be opened at Brockham and Betchworth. Sidings were provided adjacent to the main line and there was an extensive network of narrow-gauge railway tracks at both sites. The Brockham Limeworks closed in 1935, however a battery of eight kilns (dating from 1870) still stands and is Grade II listed. The larger Betchworth Quarry and Lime Kilns (approximately 1 km to the east) closed in 1960 and a variety of different kiln types have been preserved and protected with a Grade II listing. The two sites have been designated as Nature Reserves and are managed by Surrey Wildlife Trust. A wide range of bat species now roost in the former kilns.
Gravel was quarried on the northern side of Headley Heath during the 18th and early 19th centuries, most likely to provide material for building local roads.
The entirety of Box Hill lies within the Surrey Hills Area of Outstanding Natural Beauty. The vast majority of the publicly accessible areas of the hill that are managed by the National Trust and Surrey Wildlife Trust, form part of the Mole Gap to Reigate Escarpment Site of Special Scientific Interest and have been designated a Special Area of Conservation.
The chalk downland of Box Hill provides a habitat for a wide range of plant species, which in turn support a varied population of insect species. The alkaline soils are thin and nutrient poor, which prevents deeper-rooted lush grasses with a high water demand from dominating and each square metre of chalk downland may support up to 40 different species.
Without careful management, the grassland would revert to woodland and so these areas of the hill are grazed in order to prevent scrub from becoming overestablished.[note 5] Both the National Trust and Surrey Wildlife Trust use Belted Galloway cattle (affectionately nicknamed 'Belties'), which crop the grass less hard than other grazers and allow the more delicate wild flowers (including orchids) to flourish. At Betchworth Quarry, Surrey Wildlife Trust allows goats to graze, which can eat woodier plants such as gorse and bramble. Rabbits also make a significant contribution to the control of scrub and coarse grasses on the hill, although their numbers have declined since the introduction of myxomatosis in 1953.
For any conservation area, it is important to find a balance between the interests of people visiting and the needs of the wildlife that it seeks to protect. After the announcement that the Olympic cycling road races would be routed over the hill, concerns were expressed that habitats would be damaged during the event. Scrub clearance along the side of the Zig Zag Road to provide space for spectators began in January 2012, after a pre-race survey (commissioned by the London Organising Committee of the Olympic and Paralympic Games) showed that the work was likely to increase biodiversity. A second ecological survey, performed after the Games, showed that no significant damage had occurred, although some areas were subsequently reseeded.
The chalk downland environment supports notable populations of bats, lepidopterans, orchids and the hill's namesake, the box tree (Buxus sempervirens). Box Hill also has over 40 species of butterflies and plants.
A large number of species of orchid have been recorded on Box Hill, including autumn lady's-tresses, bee orchids, bird's-nest orchids, broad-leaved helleborines, common spotted orchids, common twayblades, fragrant orchids, pyramidal orchids and white helleborines.
Other wild flowersEdit
The box and yew woodland, on the steep-sloping sides of the hill above the River Mole, is of international importance. Common canopy-layer species include beech, ash and oak. Understorey species include holly, hazel, elder and honeysuckle.
Several abandoned brick and concrete structures provide habitats for bats and grills have been placed over their entrances to protect the roosting sites. Three species are known to inhabit The Old Fort: the brown long-eared bat, the noctule bat and Natterer's bat. The brown long-eared bat, Natterer's bat, the whiskered bat and Daubenton's bat have been recorded at both Betchworth and Brockham quarries. Brandt's bat has been recorded at Betchworth; Bechstein's bat and the common pipistrelle have been recorded at Brockham.
Butterflies and MothsEdit
Box Hill supports 38 different species of butterflies. Grassland species include the silver-spotted skipper and chalkhill blue. Scrubland species include the brown hairstreak and woodland species include the speckled wood and the small pearl-bordered fritillary.
Box Hill Country ParkEdit
The western part of Box Hill, managed by the National Trust, was designated a Country Park in 1971. In the early 1980s, some of the outbuildings associated with the Old Fort were converted to a visitor centre, gift shop and servery. On the hill there are car parks and a panoramic view over the Weald towards the South Downs may be enjoyed from the Salomons Memorial (more commonly known as the viewpoint). Juniper Top, on the northern side of the hill, offers views to the northwest towards Windsor Castle.
Zig Zag Road
Prudential Ride-London 100: Amateur cyclists ascending the Zig Zag Road (July 2016)
|Maximum elevation||175 m (574 ft)|
|Location||Box Hill, Surrey|
|Gain in altitude||120 m (390 ft)|
|Length of climb||2,500 m (8,200 ft)|
|Average gradient||5.0 %|
|Maximum gradient||7.3 %|
|Website||Box Hill Olympic Circuit|
Box Hill has been popular with cyclists since the 1880s and by the 1890s, Dorking Cycle Club was organising camps for amateur cyclists from across the south east of England.[note 7] The 2012 Summer Olympic cycling road races included 16-kilometre (9.9 mi) mid-race circuits of Box Hill. An estimated 15,000 spectators travelled to the hill on 28 July 2012 to watch the men's race, which included nine circuits and the following day, competitors in the women's race climbed Box Hill twice.
The Box Hill Olympic circuit is generally cycled in an anticlockwise direction and begins to the south of the village of Mickleham with an ascent of the hill via the Zig Zag Road. From the National Trust Visitor Centre, the route turns eastwards, running along the escarpment and through the urban area of Box Hill village, reaching a maximum elevation of 216 metres (709 ft) above Ordnance Datum. After 6.6 kilometres (4.1 mi) the route turns northwest along the B2033, passing though the village of Headley. After 9.5 kilometres (5.9 mi), the circuit begins a continuous descent to the valley of the River Mole, passing to the south of Leatherhead, before turning southwards again through Mickleham to return to the start.
The Zig Zag Road is a steady climb of 120 metres (390 ft) over 2.5 kilometres (1.6 mi) and has, although on a much smaller scale, been likened to the Alpe d'Huez in the French Alps.[note 8] The exact date of construction is uncertain: The road first appears on the Ordnance Survey map of 1869, but is not shown in a watercolour painting dated 1861 by William Leighton Leitch, which is owned by the Royal Collection. The Zig Zag Road is not a public right of way and is closed for one day each year by the National Trust, to preserve its private road status.
As part of the 2011 London Prepares series, the London–Surrey Cycle Classic for professional cyclists was organised to test the Olympic course. The Prudential RideLondon-Surrey 100 and London–Surrey Classic, for amateur and professional cyclists respectively, have taken place annually following the Games and, although the course has undergone several alterations from the 2012 Olympic course, the two races always include a climb of Box Hill.
High Ashurst is an outdoor education and activity centre on the northern side of Box Hill, adjacent to Headley Heath. The centre is run by Surrey Outdoor Learning and Development on behalf of Surrey County Council. Previously the site comprised the grounds of a country house, which was demolished in the 1970s, having been derelict for several decades.
The circular flint tower located on the northern tip of Lodge Hill was built for the piano maker Thomas Broadwood, who purchased Juniper Hall in 1815. It is approximately 8 metres (26 ft) high and originally had two internal floors, linked by a spiral staircase. The original doorway is visible on the east side, but has been sealed with rough flints. An avenue of beech trees linked the folly to Juniper Hall, although these were destroyed by the Great Storm of 1987. The tower may have been built to commemorate the Battle of Waterloo.
Peter Labilliere was born in Dublin on 30 May 1725 to a family of French Huguenot descent. He joined the British Army at the age of 14, becoming a major in 1760. After leaving the army he became a political agitator and was accused in 1775 of bribing British troops not to fight in the American War of Independence, although he was never tried for treason.
After moving to Dorking in around 1789, Labilliere often visited Box Hill to meditate. With old age he became increasingly eccentric and neglected his own personal hygiene to such an extent that he acquired the nickname "the walking dung-hill". He died on 6 June 1800. In accordance with his wishes he was buried head downwards, on 11 June on the western side of Box Hill above The Whites. In the presence of a crowd of thousands that included visitors from London as well as the local "quality gentry", Labilliere was buried without any religious ceremony, having reportedly said that the world was "topsy-turvey" and that it would be righted in the end if he were interred thus. But this preference was not mentioned in his "Book of Devotions": rather he there said that he wished to emulate the example of St Peter, who was crucified upside-down according to tradition.
The current memorial stone on Box Hill is not believed to mark the exact location of his burial (which is thought to be several metres to the west on a steep incline). There are two errors on the stone itself: He was buried in June 1800 (rather than July) and all surviving manuscripts indicate that he spelt his name Labilliere (rather than Labelliere).
Weypole and Stepping StonesEdit
The Weypole (or Waypole) is a roughly semi-circular 2.4 ha (5.9-acre) area of level ground at the foot of Box Hill, between The Whites and the River Mole. The area was originally part of the grounds of Burford Lodge, built by John Eckersall in 1776, and the apple and cherry trees in the area suggest that it was used as an orchard for a time. The Burford Lodge estate was later owned by the horticulturalist Sir Trevor Lawrence, who created a garden along the banks of the Mole for his collection of orchids.
A ford across the River Mole is thought to have existed here since prehistoric times. The way-pole was a notched post secured in the riverbed, to indicate the depth of the water. Stepping stones at this site are first recorded in 1841 and they may have been installed by an owner of Burford Lodge to facilitate access to the Weypole orchard. The current stones were dedicated on 11 September 1946 by Prime Minister Clement Attlee, at the request of James Chuter Ede, local politician and Attlee's Home Secretary, replacing those destroyed during World War 2 as an anti-invasion measure. The spot is popular with both anglers and families, although swimming is strongly discouraged. The stones give their name to the pub in the nearby village of Westhumble.
John Logie Baird, the inventor of the first working television system, lived at Swiss Cottage from 1929 until 1932. Baird conducted some of his experiments on Box Hill, including his Noctovisor, an infra-red viewing device.
Box Hill & Westhumble is the closest railway station to the National Trust Country Park (approximately 500 m) and is served by trains from both London Victoria and London Waterloo. Both Dorking Deepdene and Dorking (Main) stations are around 1 km from the south western corner of the hill. Betchworth station is at the south eastern corner of the hill.
Access for Motor VehiclesEdit
Access to the National Trust Country Park from the A24 dual carriageway is via the B2209 and the Zig Zag Road, however this route is not suitable for buses or coaches. Alternative access is via the B2033 and Boxhill Road, which leads through Box Hill village and approaches the Country Park from the west. Headley Heath is directly accessible from the B2033.
National Cycle Route 22 runs along the northern boundary of the hill via Lodgebottom Road and Headley Lane, before turning south along the A24 close to the western boundary. The Surrey Cycleway approached Box Hill from the west via Westhumble, before turning to the south towards Dorking.
The North Downs Way long-distance footpath from Farnham to Dover, crosses the River Mole at the Stepping Stones and then runs from west to east at the top of the scarp slope, passing in front of the Salomons Memorial.
A watercolour entitled ‘’Box Hill, Surrey’’ dated 1861 by William Leighton Leitch (1804-1883), which depicts the view looking northwards from the Old Fort before the Zig Zag Road was built, is part of the Royal Collection.
The Box Hill Road River, a highly curved, 100-metre (330 ft) line painted onto the surface of the Zig Zag Road by the British sculptor and land artist Richard Long, was commissioned jointly by the London 2012 Festival and the National Trust to celebrate the route of the Olympic Cycling road races.
In England: A Nation, (London: R. Brimley Johnson, 1904), edited by Lucian Oldershaw, and in a chapter entitled "The Patriotic Idea" written by G. K. Chesterton, the beauty of Box Hill violated by an invading army is used to express a healthy patriot's love for his nation as opposed to the jingoistic nationalism of tabloid newspapers:
"But just as a man who has been in love will find it difficult to write a whole frantic epic about a flirtation, so all that kind of rhetoric about the Union Jack and the Anglo-Saxon blood, which has made amusing the journalism of this country for the last six years, will be merely impossible to the man who has for one moment called up before himself what would be the real sensation of hearing that a foreign army was encamped on Box Hill."
Mystery author Cyril Hare sets his 1954 novel, That Yew Tree's Shade (published in the U.S. as Death Walks the Woods), at "Yew Hill", which Hare admits in an introduction is modelled on Box Hill.
British biker rock band Dumpy's Rusty Nuts released a single called Box Hill or Bust in 1984. The song is something of a cult anthem for bikers and reflects the popularity of Box Hill among the biking community.
In Richard Thompson's song 1952 Vincent Black Lightning (released in 1991), Box Hill is the location to which James and Red Molly ride on James' motorcycle. In cover versions of this song by American musicians, Box Hill is sometimes changed to Knoxville, a city in Tennessee.
In the newsEdit
- The tree marks the boundary between two parishes: Mickleham (to the north) and Dorking (to the south).
- In March 1879 the coach left Piccadilly at 10:30am every day, arriving at the Burford Bridge Hotel at 1pm. The return journey left Box Hill at 4pm, arriving back in London at 6:30pm.
- Now known as Dorking West station on the North Downs Line.
- Salomons died in September 1915, just over a year after donating the land on Box Hill to the National Trust. His widow opened the Memorial at the viewpoint in 1920.
- Although its spread is often considered undesirable, scrub provides valuable habitat for a range of invertebrates on Box Hill, including the Roman snail, rufous grasshopper and the dark green fritillary.
- The cliff above the River Mole is so steep and the soil is so shallow that the bare chalk rock is exposed in several places.
- In February 2017 the Sunday Times newspaper identified Box Hill as one of the top six rural cycling accident blackspots in the UK, stating that seven accidents on the Zig Zag Road had been reported to the Police in 2015.
- On 15 August 2014 Ciaran O'Hara and Roger Barr cycled up the hill 73 times to complete a challenge known as Everesting, in which cyclists repeatedly climb a hill to gain the same vertical elevation (8848 m) as Mount Everest.
- Wooldridge & Hutchings 1957, p. 79
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- Margary 1948, p. 260-263
- Margary 1948, p. XX
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- Macky, John (1714). A journey through England. In familiar letters. From a gentleman here, to his friend abroad. 1. London: J. Hooke.
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- "The Boxhill Coach". Daily News. London. 31 March 1879.
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- "The Bank Holiday". The Times. London. 7 August 1883.
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- "Box Hill Fort". Historic Forts on Waymarking.com. waymarking.com. 2006. Retrieved 10 February 2012.
- Littledale, Locock & Sankey 1984, p. 23
- Bannister 1999, p. 27
- Edwards, Mark (11 September 2014). "Box Hill viewing point reopens to mark 100th anniversary". Surrey Live. Retrieved 21 October 2019.
- Littledale, Locock & Sankey 1984, p. 15
- Littledale, Locock & Sankey 1984, pp. 15–16
- "National Trust Acquisition Data" (PDF). National Trust. 2010. Archived from the original (PDF) on 3 June 2012. Retrieved 12 February 2012.
- Foot W (2009). "Defence Area 12: Dorking Gap" (PDF). Defence Areas: a national study of Second World War anti-invasion landscapes in England. English Heritage. Retrieved 11 December 2010.
- Marchington T (2000). "Wartime Defences: A Second Look". Proceedings of the Leatherhead and District Local History Society. Leatherhead and District Local History Society. 6 (4): 96–100.
- "Box Hill, Surrey: walk of the week". Daily Telegraph. 2 March 2011. Retrieved 29 March 2011.
- "On Guard in Britain, 1940-1941". The Department of National Defense, Government of Canada. Retrieved 13 February 2016.
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- Tuson 2013, p. 30-31
- Matharu, Hardeep (21 September 2012). "Unexploded mortar shells discovered on Headley Heath". Sutton and Croydon Guardian. Retrieved 21 October 2019.
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