Ovenstadlia

Kjenner is a village in Lier municipality in Buskerud, Norway. Kjenner located near Tranby and close to the European route E18, near from the border between Buskerud and Akershus. It is situated about eight kilometers west of the center of Asker and nine kilometers to the southwest of the community center of Lierbyen. The village had 1,954 inhabitants as of 1 January 2012.

Lierskogen is the easternmost village of Lier municipality in Viken county, Norway. Lierskogen makes up the eastern part of Lier together with the nearby village of Tranby. It borders Asker to the east and Drammen to the west. One of the busiest highways in Norway, European route E18 runs straight through the agricultural landscape of Lierskogen.

Hennummarka is a village in Lier municipality, Norway. Located just north of the village Tranby, it is a part of the urban area Tranby which has a population of 5,580.

Braathen SAFE Flight 239, also known as the Asker Accident (Norwegian: Asker-ulykken), was a controlled flight into terrain of a Fokker F28 Fellowship into Vestmarka in Asker, Norway, on 23 December 1972 at 16:33. The Braathens SAFE aircraft was en route on a scheduled flight from Ålesund Airport, Vigra and crashed during approach to Oslo Airport, Fornebu. Forty of the forty-five people on board the aircraft died, making it the deadliest civil aviation accident in Norway until Vnukovo Airlines Flight 2801 in 1996. According to Norwegian newspaper Dagbladet on 23 December 1992, a Danish citizen died of late complications in 1976. The pilots took a short-cut during approach on runway 06 at Fornebu. Combined with false signals from the instrument landing system (ILS), this caused the pilots to misunderstand their location. This in turn led them to take an incorrect landing path, causing the plane to hit ground in a hilly area. The rescue operation was initiated almost immediately, but it took six and a half hours to find the aircraft. Three years later, the investigation commission concluded that various measures should be put in place to improve navigation, to avoid similar situations in which pilots misunderstood their location.

Lieråsen Tunnel is a single-tubed railway tunnel of the Drammen Line situated in Asker and Lier in Norway. At a length of 10.723 kilometers (6.663 mi), the double track tunnel is located immediately between Asker Station and Lier Station. It is used for a mix of short- and long-haul passenger trains and freight trains. Construction of the tunnel commenced in 1962, along with a new section of track between the tunnel and Brakerøya Station. Inadequate geological surveys ahead of construction resulted in the tunnel being built in the middle of an altered and crushed zone, delaying construction and eventually shifting the route 300 meters (980 ft) to the southwest. The tunnel opened on 3 June 1973. In addition to providing double track, it shortened the Drammen Line by 12.4 kilometers (7.7 mi). Part of the old section of the Drammen Line became the Spikkestad Line, while the rest of line was closed. Lieråsen was the longest railway tunnel in the country until the Romerike Tunnel opened in 1999.

Reistad is a small village in Lier municipality in Buskerud, Norway. Its population in 1999 was 554, and since 2001 has considered a part of the urban area of Lierbyen.

Lier is a municipality in Buskerud county, Norway. The administrative centre of the municipality is the village of Lierbyen. The municipality of Lier was established on 1 January 1838 (see formannskapsdistrikt). The area Åssiden was transferred from Lier to the neighboring municipality of Drammen on 1 July 1951. Norway's longest indoor shopping center, Liertoppen, is located in Lierskogen. The newspaper Lierposten is published in Lier.

Dikemark Hospital is a psychiatric hospital with 170 patients in Asker, Norway. The hospital was owned and managed by the municipality of Oslo but has been a part of Ullevål hospital since 2001. It was opened in 1905, when the city council of Christiania bought the farm Dikemark, in Asker. Patients were moved from the "Christiania municipal insanity asylum" (Sindssygeasyl) to the newly established Dikemark psychiatric hospital. The hospital consists of the following departments: National Coordination Unit for Sentences to Compulsory Mental Health Care, Psychosis Unit 1, Psychosis Unit 2, Regional Competence Service for Psychiatry and Developmental Disorders, Regional Section of Psychiatry and Developmental Disorders (PUA), Regional Security Section (RSA), Section for Psychosis Treatment and Security Psychiatric C. In 1981, several film canisters containing the original cut of the 1928 silent film The Passion of Joan of Arc were discovered in a janitor closet in the hospital.

Lier Station (Norwegian: Lier holdeplass) is located at the village of Lier, Norway on the railway Drammen Line. The station is served by the Oslo Commuter Rail L13, service with half-hour headway by Vy. The station is served by line L1, with one departure at 01:54 to Drammen.

Viken County Municipality (Norwegian: Viken fylkeskommune) is the democratically elected regional governing administration of Viken county in Norway. The main responsibilities of the county municipality includes the overseeing the county's 21 upper secondary schools, county roadways, public transport, dental care, culture, and cultural heritage. The public transportation in the county is managed by Brakar, Østfold Kollektivtrafikk, and Ruter. Ruter is co-owned with the city of Oslo.

Tranby is a village in Lier municipality in Viken, Norway. The village consists mainly of three residential areas located in a semi-circle around a small forest area. Tranby is a part of a greater urban area which also encompasses the village of Hennummarka. The urban area is named Tranby and has a population of 5,322.Tranby Church (Tranby kirke) dates from 1855. It was designed by architects Heinrich Ernst Schirmer and Wilhelm von Hanno. The edifice is constructed of stone and has 360 seats. Access to the site is via Rv282 and Rv285.

Vestmarka is a forested and hilly area in Asker, Bærum and Lier which constitutes part of Oslomarka, Norway. The land is owned by Løvenskiold Vækerø and is a popular recreational area. It was the site of Braathens SAFE Flight 239, a plane crash on 23 December 1972.