Hedmark [ˈheːdˈmɑrk] is a county in Norway, bordering Sør-Trøndelag to the north, Oppland to the west and Akershus to the south. The county administration is in Hamar. Hedmark makes up the northeastern part of Østlandet, the southeastern part of the country. It has a long border with Sweden, Dalarna County and Värmland County. The largest lakes are Femunden and Mjøsa, the largest lake in Norway. Parts of Glomma, Norway's longest river, flow through Hedmark. Geographically, Hedmark is traditionally divided into: Hedemarken, east of Mjøsa, Østerdalen, north of Elverum, and Glåmdalen, south of Elverum. Hedmark and Oppland are the only Norwegian counties with no coastline. Hedmark also hosted some events of the 1994 Winter Olympic Games.