Main Page | See live article | Alphabetical index The Brigach is the shorter of the two German rivers that form the Danube river. It has its source at 925 m above sea level in St. Georgen in the Black Forest. After 43 km, it joins the Breg river in Donaueschingen to form the Danube. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.