Harefield Academy

Harefield is a village in the London Borough of Hillingdon, England, 17 miles (27 km) northwest of Charing Cross near Greater London's boundary with Buckinghamshire to the west and Hertfordshire to the north. The population at the 2011 Census was 7,399. Harefield is the westernmost settlement in Greater London, and lies outside the capital's contiguous built-up area. Harefield is near Denham, Ickenham, Northwood, Rickmansworth, Ruislip and Uxbridge. Pioneering heart surgery techniques were developed at Harefield Hospital.

Harefield United Football Club are an English football club based in Harefield in the London Borough of Hillingdon. The club is the oldest in Middlesex. The club is affiliated to the Middlesex County Football Association. They are currently members of the Combined Counties Premier North Division as of the 2022-2023 season, having left the Spartan South Midlands League Premier Division at the end of the 2021-2022 season.

Harefield Hospital is a health institution in Harefield, London Borough of Hillingdon, England. It is managed by the Guy's and St Thomas' NHS Foundation Trust.

Old Park Wood is a 16.7-hectare (41-acre) Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon. The south-east part is an 8-hectare (20-acre) nature reserve owned and managed by the Hertfordshire and Middlesex Wildlife Trust. The site is ancient woodland which dates back to the Domesday Book. It was part of Harefield Park, which had an eighteenth-century house which later became the site of Harefield Hospital.The hilly site is almost wholly wooded, and one of the floristically richest ancient woods in the London area. Its highlight is the abundance of flowers in spring, with a carpet of bluebells together with yellow archangel, lesser celandine, wood anemone and the rare coral root bittercress (cardamina bulbifera).The site is dissected by small valleys and has a variety of types of soil and plants. The trees are mainly oak, birch, hornbeam and ash. Golden saxifrage and marsh marigolds grow along small streams and there is a pond which is important for dragonflies and invertebrates. There is a good variety of birds, including nuthatch and all three British species of woodpecker.The site lies behind Harefield Hospital. There is no access from the hospital, but a footpath along its border fence from Hill End Road leads to the Herts & Middlesex nature reserve. This may be closed as a developer disputes the right of way. Another footpath between Summerhouse Lane and Hill End Road goes through the SSSI, skirting the northern boundary of the nature reserve. The London Loop goes along this footpath.

Uxbridge power station supplied electricity to the District of Uxbridge and the surrounding area from 1902 to 1962. The power station was built by the Uxbridge and District Electric Supply Company Limited which operated it until the nationalisation of the British electricity supply industry in 1948.

Harefield Pit is a 1.8-hectare geological Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon. It occupies much of a partially filled-in chalk quarry. It has two entries in the Geological Conservation Review database.It is an important Tertiary site in the London Basin, which displays a sequence through the Upper Chalk, Reading Beds and London Clay. It is the only known source of charophytes in the Reading Beds, and these have potential for correlation with other localities in Europe.Natural England has cast the site as "unfavourable declining" as the Reading Beds are not visible due to covering by vegetation. It is set behind Lovett Road, without public access.

The 1948 Northwood mid-air collision took place on 4 July at 15:03 when a Douglas DC-6 of Scandinavian Airlines System (SAS) and an Avro York C.1 of the Royal Air Force (RAF) collided in mid-air over Northwood in London, UK (then in Middlesex). All thirty-nine people aboard both aircraft were killed. It was SAS's first fatal aviation accident and was at the time the deadliest civilian aviation accident in the UK. It is still the deadliest mid-air collision in British history. The DC-6, registration SE-BDA and named Agnar Viking, was on an international scheduled flight from Stockholm via Amsterdam to London's RAF Northolt. The Avro York of the 99 Squadron, with serial number MW248, was on a flight from RAF Luqa in Malta to RAF Northolt. The aircraft were two of four participating in a stacking at Northolt. At the time of the accident, the SAS aircraft was holding at 2,500 feet while the RAF aircraft was holding at 3,000 feet. However, due to an error in the setting of the atmospheric pressure compensation of the RAF aircraft, it may have been lower. At the time of the collision the DC-6 was ascending, as the pilots had minutes before decided to divert to Amsterdam and to leave the stacking.

Dews Farm Sand Pits is a 1.2-hectare (3.0-acre) nature reserve near Harefield in the London Borough of Hillingdon. It is managed by the London Wildlife Trust, and is a Site of Borough Importance for Nature Conservation, Grade I.The site is an old quarry which has been reclaimed by nature. It has areas of woodland, dominated by pedunculate oak and ash. In drier grassland areas, there is common knapweed, agrimony and ox-eye daisy.There is access from Harvil Road near Newyears Green Lane.

Ruislip, Northwood and Pinner is a constituency in Greater London represented in the House of Commons of the UK Parliament since 2019 by David Simmonds, a Conservative.

Mid Colne Valley is a 132 hectare biological Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon and Denham in South Buckinghamshire. Its main importance lies in its extensive diversity of birdlife in lakes in former gravel pits. The site is divided into three areas. The great majority is in an area of four lakes bounded on the west by the River Colne and on the east by the Grand Union Canal. The river forms the boundary between Greater London to the east and Buckinghamshire to the west, and west of the river in Denham is a small area called Ranston Covert. The SSSI also includes a field called Coppermill Down east of the canal.

Batchworth was once a hamlet and is now a civil parish and part of Rickmansworth in Hertfordshire. The parish of Batchworth was created on 1 April 2017 consisting of two Three Rivers District Council wards: Rickmansworth Town, and Moor Park and Eastbury. The first election to Batchworth Parish Council was on 4 May 2017. There are eight councillors; four in each ward.The Grand Union Canal passes through Batchworth. The Batchworth Canal Centre is alongside the Grand Union lock, near the junction of the A404 and A4145 roads. This is the home of the Rickmansworth Waterways Trust who run a visitors centre, a working heritage boat, a small outdoor cafe and co-ordination of the annual Rickmansworth Canal Festival.The future of the historic cotton mill is uncertain following its need of urgent repairs.Batchworth Sea Scouts have their headquarters alongside the canal. The Batchworth Dragons dragon boat club were born out of the scout group and competes at a national and international level.Batchworth Lake, created by the extraction of gravel for the original Wembley Stadium, is used for water skiing and forms part of Rickmansworth Aquadrome. Batchworth Heath is four hectares (ten acres) of designated common land around the junction of Batchworth Heath Hill, Batchworth Lane and White Hill, owned and managed by Three Rivers District Council. The habitat is heathland with an ancient pond and rich wildlife. Since July 2015 the site has been listed by Natural England as a Local Nature Reserve, but according to Three Rivers Council this is an error and they have asked Natural England to remove it from the list.

The Colne Valley Viaduct is a bridge, under construction as of 2023, which will carry the High Speed 2 railway over the Colne Valley Regional Park and the Grand Union Canal, in Hillingdon, west London. When completed, its length of 3.4 kilometres (2.1 mi) and a weight of 116,000 tonnes will make it the largest railway bridge in the UK. It is one of the largest single civil engineering works of HS2 Phase 1.A contract for the section of the railway pertaining to the viaduct was awarded during 2017 and the design concept was released to the public on 19 January 2018. Preparatory work commenced shortly thereafter, including a compulsory land purchase and the establishment of temporary facilities, including a factory, onsite. Construction of the viaduct commenced during March 2021 with completion of the main deck due to occur during 2024 with full completion expected for May 2025. Protestors have occasionally occupied the site, and allegations over the viaduct's aesthetic and environmental impact upon the area have been made.