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How do the Breg and Brigach streams form the Danube River?
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Danube River
The Danube River basin and its drainage network.
The Danube River originates from the eastern slopes of the Black Forest mountains in Germany. It is formed by the union of two small headstreams, the Breg and the Brigach, which meet at the town of Donaueschingen to create the Danube.1