Source of the Danube of Baden): “Danube, the biggest river of Germany, rises at the Martinskapelle in a wild and lonely area of the Black Forest, is called Brege at its origin and forms the river Danube in Donaueschingen where it is unified with the Brigach." (German original: „Donau, der größte Fluß Deutschlands, entspringt bei der Martinskapelle in einer wilden und einsamen Gegend des Schwarzwaldes, heißt am Anfang Brege… und bildet erst in Donaueschingen, wo sie sich mit der Brigach vereinigt, die Donau.“) The identification of the main spring in the uppermost Bregtal (also called Katzensteig) is dependent on a defining convention: Instead of
Executive Agency for Exploration and Maintenance of the Danube River Executive Agency for Exploration and Maintenance of the Danube River EAEMDR was established as an organization in 1935 under the name “Danube Hydrographical Service” within the structure of the Ministry of Railways. The headquarters were situated in the city of Lom and the responsibilities of the Service were related to the maintenance of the waterway, creation of maps of the Danube River, conduction of hydro meteorological surveys in the Bulgarian section of the river. In 1949, after the ratification of the “Convention for the sailing regime on the Danube River”, the Danube Hydrographical Service passed over to the Ministry of