The Breg source is 12 kilometers longer than the Brigach stream, which is the other primary headwater of the Danube.
The flow from the Breg source determines the total length of the Danube; without it, the river would be significantly shorter.
The site is located on the European watershed divide, separating rivers that flow toward the North Sea from those flowing toward the Black Sea.
The nearby Martinskapelle chapel was historically a place of pilgrimage, dating back to the 18th century.
The water from the Breg source eventually passes through 10 countries before reaching the Danube Delta.
The Source of the Breg, located near the Martinskapelle chapel in Furtwangen, is recognized as the geographical headwaters of the Danube River. While the official Donaueschingen source is traditionally cited as the starting point, hydrologists consider the Breg to be the longest source stream, making this the true start of the river. The water emerges at an elevation of approximately 1,078 meters above sea level within the Black Forest highlands. A small stone monument and an informational plaque mark the precise location where the spring surfaces. The surrounding landscape consists of high-altitude mountain pastures and forest fringes. Visitors often combine this site with a short hike through the neighboring moorland and meadows. The site functions as a public point of interest rather than a formal nature reserve. It marks the divide where local runoff begins its 2,850-kilometer journey toward the Black Sea.
The stone monument inscribed with the 'Donauquelle' designation at the spring's primary outlet.
Wear waterproof hiking boots, as the ground around the spring can be muddy even in dry weather.
Bring a windbreaker, as the high elevation often results in significantly lower temperatures than in the valley below.
Follow the marked trail signs for 'Donauquelle' from the parking area to ensure you reach the correct spring.
Do not mistake the decorative fountain in the center of Donaueschingen for the actual source of the river.
Respect the surrounding private farmland by staying on designated paths and carrying out all waste.