 Troll is a research station located at Jutulsessen , 235 kilometers ( 146 mi ) from the coast in the eastern part of Princess Martha Coast in Queen Maud Land , Antarctica . It is Norway 's only all @-@ year research station in Antarctica , and is supplemented by the summer @-@ only station Tor . Troll is operated by the Norwegian Polar Institute and also features facilities for the Norwegian Meteorological Institute , the Norwegian Institute for Air Research . 
