Ouse Valley Viaduct

The Ouse Valley Railway was to have been part of the London, Brighton & South Coast Railway (LBSCR). It was authorised by an Act of Parliament in 1864 and construction of the 20 miles (32 km) long line was begun, but not completed. It never opened to traffic.

Mid Sussex is a constituency represented in the House of Commons of the UK Parliament from 2019 by Mims Davies, a Conservative. She is currently a minister in the Department for Work and Pensions.

Balcombe Place is a Grade II* Listed Building, built in 1856 in West Sussex, with a south view across the Ouse Valley. It now forms part of The Balcombe Estate.The architect was Henry Clutton. It was built for John Alexander Hankey, whose family had been living at Naylands, a house about 1 mile away. The Gentleman's Magazine in 1864 refers to a meeting where “members adjourned to Balcombe Place, a residence recently erected by John Alexander Hankey, Esq., who hospitably entertained them”.The main living area was connected to the servant's areas, a rear courtyard and stables. A photograph in 1897 shows a tall, large glass and wood conservatory on the east side. By the 1960s, that structure had fallen in disrepair and had either been demolished on purpose, or had simply fallen down. Images in 2013 suggested it was overgrown, but still protected by walls on each side, and probably still growing plants from earlier plantings. Descriptions refer to the Denmans 'lawn tennis' courts, but their location is unclear. No courts are shown in the 1910 OS map, a (hard) court existed in the 1960s and appears in the 1974 OS map. At 2013, the OS (and Google Earth) show the hard court to have gone.Early maps show wooded areas around the main building, but with a generally unobstructed view to the south. By the 1960s, some trees to the east and south had been removed. This may have occurred during the war years, or when the land was used as a school, but may have been arranged beforehand by Lady Denman, who recorded 'bonfires' as a hobby and was once described as 'indiscriminately lopping' trees.

Borde Hill Garden is a garden located 1.5 miles (2.4 km) north of Haywards Heath, West Sussex in southern England. It is set in over 200 acres (80 ha) of garden, park and woodlands which has views across the Sussex High Weald. Borde Hill Garden is planted in “living garden rooms”, each offering a different character and style. It is home to many rare shrubs: from rhododendrons, azaleas and magnolias to roses, as well as numerous trees including one of the largest collections of champion trees in a private property in Britain (82 specimens as of 2013).

Ardingly Reservoir is west of Ardingly in West Sussex. The southern end is a 74.5-hectare (184-acre) Local Nature Reserve owned and managed by South East Water.The reservoir feeds the River Ouse located in West Sussex, England 5 miles (8.0 km) north of Haywards Heath. The villages of Ardingly and Balcombe are immediately to the east and north of the reservoir respectively. It was created in 1978 by damming Shell Brook, a tributary of the River Ouse which flows into the Ouse about 500m south of the reservoir. It is filled with water pumped from the River Ouse when river flows are high. The water is stored in the reservoir before being treated and distributed to consumers. The Ardingly Activity Centre provides watersports for the public including wind surfing, kayaking, powerboating, paddle boarding and dinghy sailing. The reservoir is also used by Ardingly Rowing Club.The west bank of the reservoir is private property of the Balcombe Estate but the north, south and east shores offer public rights of way and bridleways. Ornithologists are catered for with two bird hides situated on the east bank.

The Balcombe drilling protest occurred when test drilling and possible fracking for petroleum were proposed in 2012 near Balcombe, a village in West Sussex England. Local residents protested and anti-fracking environmentalists in the UK made it a focus of attention. The drill pad is located in a wooded area known as Lower Stumble Wood.

Ardingly was a railway station which served the West Sussex village of Ardingly in England. It was opened on 3 September 1883 by the London, Brighton and South Coast Railway (LBSCR) closed eighty years later and is currently used as an aggregates depot. The Bluebell Railway owns the trackbed from just east of the station to Horsted Keynes and has long-term plans to rebuild the line.

The Chapel of S. Saviour is the chapel to Ardingly College in West Sussex, England, and is considered an example of Gothic Revival architecture. The chapel was designed by R.H Carpenter and William Slater. The foundation stone of the college chapel was laid in 1864 and finished in 1892 The chapel was dedicated to St Saviour, and built predominantly of brick. It is a Grade II listed building. The current provost is The Rt Revd Jonathan Meyrick.

Ardingly College () is a fee-charging boarding and day school in the English public school tradition located near Ardingly, West Sussex, England. The school is a member of the Headmasters' and Headmistresses' Conference and of the Woodard Corporation of independent schools and as such has a strong Anglo-Catholic tradition. It was originally a boarding school for boys, and became fully co-educational in 1982. For the academic year 2015/16, Ardingly charged day pupils up to £7,710 per term, making it the 29th most expensive Headmasters' and Headmistresses' Conference (HMC) day school. It is a public school in the British sense of the term (i.e. fee-paying). As of 2017, there are about 416 pupils enrolled at the school, aged between 13 and 18. Additionally, there are about 520 pupils aged from 2½ to 13 at the Ardingly College Preparatory school, with which it shares some grounds.The school is regularly positioned amongst the top ten International Baccalaureate (IB) schools in the United Kingdom, and has won the Royal Society of Chemistry Top of the Bench Competition, at the time captained by Thomas Hindle.Ardingly played an important role in providing infantry throughout the 20th century conflicts, with around 1,200 Ardingly pupils going on to fight in the First World War, 146 of whom were killed, along with two former members of staff. In addition, 88 Old Ardinians died in World War II; their names being recorded in a book of remembrance.The school's former pupils – or "Old Ardinians" – include four Conservative MPs; satirist Ian Hislop; actor Terry-Thomas; Formula One World Champion Mike Hawthorn; author Neil Gaiman; Interscan inventor John Paul Wild; and Allard Motor Company founder Sydney Allard.

Mid Sussex is a local government district in the English non-metropolitan county of West Sussex, within the historic county of Sussex. It contains the towns of East Grinstead, Haywards Heath and Burgess Hill. The district was created on 1 April 1974 from parts of East Sussex: the urban districts of Cuckfield, Burgess Hill, and East Grinstead and nearly all of Cuckfield Rural, the far north-west of which was transferred to Crawley. The district borders the Tandridge district of Surrey to the north, Wealden and Lewes districts to the east, and Brighton and Hove to the south, all in East Sussex, and Horsham district to the west and Crawley, northwest, equally in West Sussex.The Prime Meridian passes through the district. The district contains most headwaters of the River Ouse, Sussex and its largest body of water is Ardingly reservoir which is used by watersports clubs. The north of the area is the High Weald and has sections of Ashdown Forest.

St Peter's Church is the Church of England parish church of the parish of Ardingly in Mid Sussex, one of seven local government districts in the English county of West Sussex. The present building dates from the 14th century and was restored during the Victorian era, but Christian worship on the site has a much longer history. The stone-built, Decorated Gothic-style church, west of the village centre, has been designated a Grade I Listed building.

Haywards Heath railway station is on the Brighton Main Line in England, serving the town of Haywards Heath, West Sussex. It is 37 miles 59 chains (60.7 km) down the line from London Bridge via Redhill and is situated between Balcombe and Wivelsfield. It is managed by Southern. Trains calling at Haywards Heath are operated by Southern, Thameslink and Gatwick Express. Until 2008 a small number of CrossCountry services also stopped here.