The Tännichtgrund extends to Oberwarthaer and Niederwarthaer Flur and at the same time forms the western city limits of Dresden. The valley is formed by the Tännichtgrundbach, which rises about 300 meters north of the "Dresdner Tor" motorway service station on Kaufbacher Flur. From there it flows in a northerly direction and flows into the Lotzebach in Niederwartha. To this day, the stream has largely retained its natural course. Only the last section up to the confluence with the Elbe disappeared in connection with the construction of the railway around 1875.
The surrounding forests of the Tännichtgrund once served as the hunting ground of the Saxon court. A historical hunting column still reminds of this time today. Such pillars used to be used to delimit the individual hunting grounds. In addition, the valley was once the location of two watermills, of which only the lower one on Niederwarthaer Tännichtgrundstrasse has survived as a building today. At the end of the 19th century, the Tännichtgrund became a popular excursion destination. Above all, the Oberwartha monastery owner Fritz Arndt campaigned for the development of paths and viewpoints in the vicinity of his home town. On Ascension Day 1929, a memorial stone was erected in his honor at the Gertrud spring on Poetenweg. The monument was financed by the Cossebaude Beautification Association and the Oberwartha People's Education Association. The Gertrud-Quelle itself owes its name to Gertrud Arndt, the wife of the landowner.