The Elz is a river in Baden-Württemberg, Germany, a right tributary of the Rhine. "Riverine" redirects here For the use of that term in Maritime geography, see there Baden-Württemberg is one of the 16 states ( Bundesländer) of the Federal Republic of Germany. Germany, officially the Federal Republic of Germany ( ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant is a Country in Central Europe. The Rhine (Rhein Rijn Rhin Reno Rain Rhenus is one of the longest and most important Rivers in Europe at 1320 kilometres (820 mi with an average discharge It rises in the Black Forest, near the source of the Breg. For the suburb of Adelaide, please see Black Forest South Australia; for the CDP in Colorado, please see Black Forest Colorado. The Breg is a river in Baden-Württemberg, Germany. It is the right-side and longer one of the two streams that form the river Danube. The Elz flows through Elzach, Waldkirch and Emmendingen before reaching the Rhine near Lahr. Elzach is a town in the district of Emmendingen, in Baden-Württemberg, Germany. Waldkirch is a town in Baden-Württemberg, Germany. It is known as "the place of mechanical organs" where fairground organs are manufactured Emmendingen is a town in Baden-Württemberg, capital of the district Emmendingen. Lahr is a city in western Baden-Württemberg, Germany, approximately 38 km north of Freiburg in Breisgau and 100 km south of Karlsruhe Its length is approx. 90 km.