The Thuringian Forest Nature Park extends over the area around the Rennsteig in the Thuringian Forest, in the High Thuringian Slate Mountains with the Schwarzatal and on the western flank of the Franconian Forest between Eisenach in the northwest and Sonneberg in the southeast.
It includes, among other things, the so-called dam region around the Old Gotha Dam (also called the Tambach-Dietharz Dam), the Schmalwasser, Ohra and Lütsche Dams, the Erletor Dam, the Schönbrunn Dam at the transition from the Thuringian Forest to the Slate Mountains, but also the Schwarzatal with the Scheibe-Alsbach Dam and the Goldisthal pumped storage power station and the Lichtetal with the Leibis-Lichte drinking water dam.
The 170 km² Vessertal-Thuringian Forest Biosphere Reserve is enclosed by the nature park.
The highest elevations in the Thuringian Forest Nature Park are the Große Beerberg (982 m above sea level) and the Schneekopf (978 m above sea level) in the Thuringian Forest.
The Große Farmdenkopf in the Thuringian Slate Mountains reaches 869 m above sea level, the mountain peaks Kieferle (867 m above sea level) and Bleßberg (865 m above sea level) are almost the same height.
The Thuringian Forest Nature Park is directly adjacent to the Franconian Forest and Thuringian Slate Mountains-Upper Saale Nature Parks.
Together, the three nature parks form a closed nature park area of around 4000 km².
(Source: Wikipedia)