Nagold (river)

The Nagold is a river, 91 kilometres long, in Baden-Württemberg, southwestern Germany. A tributary of the Enz, it gave its name to the town of Nagold. It merges with the smaller Enz in the town centre of Pforzheim. The Nagold is 90.7 kilometres in length and has its source in Urnagold in the municipality of Seewald in the Northern Black Forest and flows in an easterly direction past Nagold, Calw and Liebenzell and joins the Enz in Pforzheim, near what is now the Parkhotel Pforzheim. The Nagold flows mainly through the Black Forest. Around the town of Nagold (between Rohrdorf and Pfrondorf) it flows through the Heckengäu region. At the Pforzheimer Kupferhammer, it enters the Pforzheim Enz Valley, which, like the Heckengäu, also belongs to the natural region of the Gäu. The Nagold is regarded by convention as a tributary of Enz. However, it carries more water than the upper course of the Enz at their confluence, is longer by a factor of about 2, and has a larger catchment by a factor of 3.5. Hydrographically, therefore, the main line of the Enz-Nagold-river system runs along it them. The upper Enz, however, has the wider valley and maintains its direction of flow. The upper reaches of Nagold run predominantly east and southeast as far as the town of Nagold, where it swings almost completely around, to head to Pforzheim, mainly in a northerly direction. The Nagold has formed numerous loops and 'meander hills' (Umlaufberge), for example at Pfrondorf (Bettenberg), in Wildberg, at Hof Waldeck (Schlossberg hill and Waldeck Castle), near Tannenberg (Rudersberg, with hillfort) and in Weißenstein. The source of the Nagold is a spring called the Nagoldursprung at Urnagold in the municipality of Seewald, on the territory of Besenfeld. After just a few kilometres, at Erzgrube, the Nagold is impounded to form the Nagold Reservoir. Up to the first town, Altensteig, the Nagold valley is mostly uninhabited. In front of Rohrdorf, the Nagold leaves the Black Forest, makes its great change of direction at the foot of the ruins of Hohennagold and enters the Black Forest again north of Pfrondorf.