Tonna (river)
Tonna is a river in the Thuringian Basin, Germany.
The river rises on the southern outskirts of Ballstädt in the district of Gotha and flows on the western edge of the Fahner Höhe, in a northern direction through the municipality Tonna for around 10 kilometers, after which it flows into the Unstrut River near the Bad Langensalza district of Nägelstedt.
