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Gardermoen is an area at the border of the municipalities Nannestad and Ullensaker in Viken, Norway. In 1998, it had a population of 259 people. Oslo Airport, Gardermoen, Gardermoen Air Station, Norwegian Armed Forces Aircraft Collection and Oslo Airport Station (train station) are located in the area. Gardermoen is a compound of the farm name Garder and the finite form of mo m 'moor; drill ground' (thus 'the moor belonging to the farm Garder'). The farm is first mentioned in 1328 (Garðar), and the name is the plural of Norse garðr m 'fence'. The meaning is probably 'enclosure; fenced fields'.

The location of the main airport serving the city of Oslo, Norway, has been the subject of several political debates since 1918. The first controversy was initially related to choice between the islands of Gressholmen and Lindøya in the Oslofjord for a water aerodrome. The debate later changed, arriving at the decision in 1933, to locate a new airport at Fornebu. However, Oslo Airport, Fornebu, being located on a peninsula, proved to not have sufficient space for a runway capable of intercontinental aircraft and a second runway, resulting in plans from the 1960s to replace it. The main contestants were Gardermoen Air Station, Hurum, Hobøl, Ås and a split solution between Fornebu and Gardermoen. In 1992, parliament decided to build an all-new Oslo Airport, Gardermoen; when it opened in 1998, Fornebu was closed. The decision caused the southern parts of Eastern Norway to be moved further from the main airport, and the regional, privately owned Sandefjord Airport, Torp became the base for low-cost airlines. Moss Airport, Rygge opened in 2007, becoming the third simultaneous airport to serve Oslo, and closed in 2016.

Sessvollmoen is a village in the municipality of Ullensaker, Norway. Its population (2005) is 653.

Hemus Air Flight 7081 was the hijacking of a Tupolev Tu-154 operated by Hemus Air on 3 September 1996. The incident occurred on-route from Beirut International Airport in Lebanon to Varna Airport in Bulgaria. The hijacker, Palestinian Hazem Salah Abdallah, a defector of the Popular Front for the Liberation of Palestine (PFLP), falsely claimed he had explosives on board. The aircraft landed at Varna at 15:15 UTC+2, where the hijacker exchanged the 149 other passengers for fuel. The aircraft continued to Norway with eight crew members and landed at Oslo Airport, Gardermoen at 20:04 UTC+1. Abdullah demanded asylum in Norway and quickly surrendered. No-one was injured in the incident. During the court case, Abdullah claimed that he was insane, but was sentenced to four years in prison. After the court case he claimed he was under orders of PFLP to crash the aircraft in Oslo. He was sent back to Lebanon after he had finished his sentence, in August 1999.

Mogreina is a village in Akershus, Norway. It is located 10 kilometres (6.2 mi) away from Gardermoen.It has one school with around 150 students.

Oslo Airport (Norwegian: Oslo lufthavn; IATA: OSL, ICAO: ENGM), alternatively referred to as Oslo Gardermoen Airport or simply Gardermoen, is the international airport serving Oslo, Norway, the capital and most populous city in the country. A hub for Norwegian Air Shuttle, Scandinavian Airlines and Widerøe, in 2011, it connected to 26 domestic and 158 international destinations.The airport is located 19 nautical miles (35 km; 22 mi) northeast of Oslo, at Gardermoen at the border of municipalities Nannestad and Ullensaker, in Viken county. It has two parallel roughly north–south runways measuring 3,600 metres (11,811 ft) and 2,950 metres (9,678 ft) and 71 aircraft stands, of which 50 have jet bridges. The airport is connected to the city center by the high-speed railway Gardermoen Line served by mainline trains and Flytoget. The percentage of passengers using public transport to get to and from the airport is one of the highest in the world at nearly 70%. The ground facilities are owned by Oslo Lufthavn AS, a subsidiary of the state-owned Avinor. Also at the premises is Gardermoen Air Station, operated by the Royal Norwegian Air Force. An expansion with a new terminal building and a third pier opened in late April 2017.The airport location was first used by the Norwegian Army from 1940, with the first military airport facilities being built during the 1940s. The airport remained a secondary reserve and airport for chartered flights to Oslo Airport, Fornebu, until 8 October 1998, when the latter was closed, and an all-new Oslo Airport opened at Gardermoen, costing 11.4 billion Norwegian kroner (NOK). Oslo is additionally served by the much smaller Sandefjord Airport, Torp, in Sandefjord, which is situated 119 km (74 mi) to the south of downtown Oslo and primarily used by leisure and low-cost carriers.

Brudalen is a farm in Ullensaker, Akershus, Norway.

Sand is a village in Ullensaker municipality in Akershus, Norway. The village lies halfway between Gardermoen and Jessheim. The village was previously its own urban area, but now is part of the urban area of Jessheim. Raknehaugen, Ljøgodttjernet, Olaløkka and Kjosbakken are places in Sand. Sand is the location of Ullensaker golfklubb (UGK). Sand also has its own football team, named Sand IL. The first team played for a while in the Norwegian 8th division and play their home games at the Olaløkka stadion. The sports club have activities for all ages, including skiing, basketball, table tennis, BMX, skateboarding, aerobics and dance.

The Gardermoen Line (Norwegian: Gardermobanen) is a high-speed railway line between Oslo and Eidsvoll, Norway, running past Lillestrøm and Oslo Airport, Gardermoen. The line is 64 kilometres (40 mi) long and replaced the older Hoved Line as the main line north-east of Oslo. The older Hoved Line now handles commuter and freight traffic, while the Gardermoen Line handles high-speed passenger trains and freight trains laden with jet fuel for the airport. Both lines are owned by Bane NOR. The line was opened in 1998, at the same time as the airport that gave the line its name. It is used by the Flytoget airport express train service as well as express trains by Vy. It is the only high-speed railway in Norway, with a maximum permitted speed of 210 km/h (130 mph). Most of the line between Oslo and Lillestrøm is through the 14.580-kilometre-long (9.060 mi; 15,945 yd) Romeriksporten tunnel—the second longest railway tunnel in Norway. The decision to build the line was made in 1992; construction started two years later. The line was subjected to severe criticism during construction when the Romerike Tunnel sprung severe leaks due to hurried construction. As a result, the tunnel was opened a year after the rest of the line.

Norwegian Armed Forces Aircraft Collection (Forsvarets flysamling Gardermoen) is a military aviation museum located at Gardermoen, north of Oslo in Viken county, Norway. The founding of the Norwegian Aviation Historical Society in 1967, gave the first boost to the idea of preserving aircraft in Norway. The Collection's Heinkel He 111 and Northrop N-3PB are among the aircraft traced, recovered and restored at the instigation of the NAHS. From the latter part of the 1970s onwards, a considerable number of historical aircraft were assembled in an old ex-Luftwaffe hangar at Gardermoen and from the mid-1980s the public were admitted to the hangar during summer. Most of the activities were - and still are - based on voluntary effort. The establishment of the Norwegian Aviation Museum in Bodø in 1992 created in intense debate in the country, especially since it was the original intention to transfer all objects at Gardermoen to Bodø. After some years a compromise was found, and in 1997 funds were allocated for a new building at Gardermoen to house a military aviation museum. The new building was inaugurated in May 2000. From 1 January 2015 the collection is part of the Norwegian Air Force Museum/Armed Forces Museums.

Rakni's Mound (Norwegian: Raknehaugen) is a large mound at Ullensaker in Akershus county, Norway. It is the largest free-standing prehistoric monument in Norway and is one of the largest barrows in Northern Europe. It dates to the Migration Age and has been the subject of three archaeological investigations.

Jessheim Stadion (previously called UKI Arena for sponsorship reasons) is a football stadium located at Jessheim in Ullensaker, Norway. Opened in August 2011, it is home of the First Division side Ullensaker/Kisa IL (Ull/Kisa). The venue consists of an all-seater grandstand with 1,130 under-roof seats on the one long side and a media center on the other side. One of the stands on the short sides has a roof, the other has not. The pitch has artificial turf and the dimensions 105 by 68 meters (115 by 74 yd).17 November 2015, Ull/Kisa's board decided that the arena would change its name from UKI Arena to Jessheim Stadion ahead of the 2016 season.