Donaueschingen lies in the Baar basin in the southern Black Forest at the confluence of the Brigach and Breg rivers— the two source tributaries of the Danube— from which the town gets its name.
This is today considered the true source of the Danube.

An enclosed karst spring on the castle grounds, the source of the "Donaubach", is known as the source of the Danube.

The municipal area extends continuously from the granite and gneiss of the Black Forest through the Triassic formations of the Schwarzwald-Baar talus to the Swabian Alb, and exhibits all strata of the southern German cuesta country.
The heights decrease from 1,020 metres (3,350 ft) in the Black Forest to about 660 metres (2,170 ft) on the Baar plateau, then increase to above the 900 metres (3,000 ft) mark again at the Swabian Alb.
A model showing the extraordinary geological setting of the city and its surrounding region is located in the park opposite the train station.

The town is close to Lake Titisee and less than an hour's drive from both Switzerland and France.
Donaueschingen lies in the Baar basin in the southern Black Forest at the confluence of the Brigach and Breg rivers— the two source tributaries of the Danube— from which the town gets its name. This is today considered the true source of the Danube.
An enclosed karst spring on the castle grounds, the source of the "Donaubach", is known as the source of the Danube.
The municipal area extends continuously from the granite and gneiss of the Black Forest through the Triassic formations of the Schwarzwald-Baar talus to the Swabian Alb, and exhibits all strata of the southern German cuesta country. The heights decrease from 1,020 metres (3,350 ft) in the Black Forest to about 660 metres (2,170 ft) on the Baar plateau, then increase to above the 900 metres (3,000 ft) mark again at the Swabian Alb. A model showing the extraordinary geological setting of the city and its surrounding region is located in the park opposite the train station.
The town is close to Lake Titisee and less than an hour's drive from both Switzerland and France.
Donaueschingen