Naturpark Obere Donau
The Upper Danube Nature Park (German: Naturpark Obere Donau), founded in 1980, is located in the south of Baden-Württemberg in Germany and encloses primarily the districts of Tuttlingen and Sigmaringen. It encompassed initially 860 km2 that were increased by about 500 km2 in 2005. The headquarters of the nature reserve association is at Beuron. The highest proportion of the nature park is taken up by the Heuberg, the south-western plateau of the Swabian Alb, and is punctuated by the Danube.
Two small rivers, the Brigach and the Breg at the eastern border of the Black Forest unite at Donaueschingen to form the Danube.
The Danube passes through the Upper Danube Nature Park between Immendingen and Ertingen, its deep bed dug deep into the Jurassic stone of the Swabian Alb. In this break-through valley of the still narrow river mighty rocks like chalk rocks ("Kalkfelsen") are exposed: One of it is the "Knopfmacherfelsen" at Beuron. Beuron with its Beuron Archabby lies in the middle of the attractive scenery of the nature reserve.
This break-through valley in the area of the Upper Danube is known as Danube Valley.
The upper part of the Danube passes through following cities: Tuttlingen, Mühlheim, Fridingen, Sigmaringen, Scheer and Mengen.
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