Telemark is a traditional region, a former county and a current electoral district in Norway. In 2020 the county became part of the larger Vestfold og Telemark county. The region borders the traditional regions and former counties Vestfold, Buskerud, Hordaland, Rogaland and Aust-Agder. Telemark means the "mark of the Thelir", the ancient North Germanic tribe that inhabited what is now known as Upper Telemark in the Migration Period and the Viking Age.
Historically the name Telemark only referred to Upper Telemark, while the coastal areas of the region were considered separate regions.
Wikipedia https://en.wikipedia.org/wiki/Telemark
Coordinates 59°12'32.761" N 9°36'27.158" E