Highest point of the Ilm-Saale-Platte in central Thuringia, a Muschelkalk hill with pine forest and protected lime slopes.
Großer Kalmberg
Großer Kalmberg is a hill in the German state of Thüringen, rising to 547.5 metres above sea level (Normalhöhennull) on the boundary between the Ilm-Kreis district and the Landkreis Saalfeld-Rudolstadt. Lying roughly 25 kilometres south of Erfurt and Weimar, it forms part of the Ilm-Saale-Platte, a plateau built from Triassic Muschelkalk limestone, and is the highest summit of that plateau with the exception of the isolated Zeugenberg known as the Singener Berg.
The hill is clothed in pine forest and shows a clear asymmetric profile: its southern flank drops steeply into the Remdaer Graben valley, while the northern side slopes gently down toward the valley of the Ilm river. Around the summit, smaller subsidiary tops are recognised, including the Kleine Kalm (511 metres) to the southwest and the Kleine Kalmberg (467 metres) to the north.
Although it has no national park status, parts of the southern slope of Großer Kalmberg were designated in 1999 as an FFH (Fauna-Flora-Habitat) area under the European Habitats Directive, covering roughly 264 hectares of calcareous slopes, dry grassland, rock outcrops, felsflur communities, small mires and Molinia meadows. A prominent broadcasting mast of the Sender Remda, built on the former NVA military site, now marks the summit landscape.
