Aachtopf
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The Aachtopf is Germany's biggest karst spring, south of the western end of the Swabian Jura near the town of Aach. It produces an average of 8,500 litres per second. Most of the water stems from the
Aachtopf historical postcard, 1910
Aachtopf view from spring towards river
Panorama
Stream capture
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Stream capture, river capture, river piracy or stream piracy is a geomorphological phenomenon occurring when a stream or river drainage system or watershed is diverted from its own bed, and flows down
Aachtopf
…shorter route to the North Sea creates stronger headward erosion than that of the much older River Danube (see the Danube upper river geology). This stream capture of the upper Danube and its surface tributaries is expected to cause the long-term disappearance of the Danube drainage entirely in favour of the Rhine…
The River Thames as it passes through the Goring Gap