Großer Inselsberg is a mountain in the Thuringian Forest with a height of 916.5 m above sea level, located on Rennsteig in the districts of Gotha and Schmalkalden-Meiningen. It is the fourth-highest distinct mountain of Thuringia, after Großer Beerberg, Schneekopf and Großer Finsterberg and forms a landmark that can be viewed in particular from northern and …Großer Inselsberg is a mountain in the Thuringian Forest with a height of 916.5 m above sea level, located on Rennsteig in the districts of Gotha and Schmalkalden-Meiningen. It is the fourth-highest distinct mountain of Thuringia, after Großer Beerberg, Schneekopf and Großer Finsterberg and forms a landmark that can be viewed in particular from northern and western directions.