It includes the villages Oppegård, Svartskog, and Kolbotn. Nesodden on The municipality has an area of 37 square kilometres (14.3 sq mi hence it is the smallest municipality in Akershus by area. The landscape is dominated by a vast part of the north-south oriented lake Gjersjøen, which roughly divides the district into western and eastern sections. The 17 triangles symbolize 17 trees, which again symbolize the 17 old farms in the municipality. Arctic explorer Roald Amundsen lived in Svartskog and his house is now a museum, administered by the municipality. They were granted on The arms show 17 gold triangles on a black background. Municipality in Akershus, Norway, oppegård is a village and municipality in, akershus county, Norway. At the time, the population of Oppegård was only 600. Commuter trains connect Oppegård to Oslo, and makes the neighbourhoods close to the train stations (Rosenholm, Kolbotn, Solbråtan, Myrvoll, Greverud, and Oppegård) popular residential areas.