Ilm River

The Ilm, the river that flows through Bad Sulza, is fed by the source streams Freibach Taubach and Lengwitz north of Stutzerbach in the Ilm district and flows on the northern slope of the Thuringian Forest to Großheringen in the district of Weimarer Land, where after around 134 km flows into the Saale.

The Ilm has its source in the Thuringian Forest southwest of Ilmenau, then flows through a heavily karstified region, in which parts of its water seep away and flow to other tributaries of the Saale through Springe, via Weimar and Apolda to the state border with Saxony-Anhalt, where it flows into the Saale . After the Saale, Werra and Unstrut, the Ilm is the fourth longest river in Thuringia and the fourth longest tributary of the Saale. However, it is the longest river that flows completely, i.e. from the source to the mouth, in Thuringia.
Source: de.wikipedia.org/wiki/Ilm_(Saale)

what a beautiful landscape