𝑽𝒐𝒏 𝒅𝒆𝒏 𝑸𝒖𝒆𝒍𝒍𝒆𝒏 𝒃𝒊𝒔 𝒛𝒖𝒓 𝑴ü𝒏𝒅𝒖𝒏𝒈
In the large forest area of the Osburger Hochwald, at 708 meters above sea level, lies the highest point in the Ruwer catchment area - the Rösterkopf. Where the groundwater flowing in the quartzite meets impermeable clay slate, there are several spring outflows. The escaping water ultimately forms the basis for the Ruwer, which is still very inconspicuous there. Below its headwaters, the Ruwer then flows through the Keller Mulde, a nature reserve designated in 1999 with a size of around 270 hectares. The subsoil changes from the original quartzite rock to the softer Hunsrück schist. From now on, the Ruwer flows to the southwest at a significantly lower flow rate than in the source region. In the local area of Zerf, at an altitude of 350 meters above sea level, the river changes its direction of flow and turns north - one speaks of the so-called "Zerfer knee", as the Ruwer changes its direction in a 95 ° bend. Initially, wide floodplains change into stream sections with a narrow valley bottom and quite steep slopes. Only occasionally there are larger valley widenings. The settlements in this middle Ruwertal are on the upper slope. Only there are the slopes and heights more gently inclined and can also be used for agriculture. Finally, in the lower section of the river, there are the wine-growing towns of Waldrach, Kasel, Mertesdorf and Trier-Ruwer. The wine that has made the Ruwertal famous far beyond the country's borders grows on the steep slate slopes facing south and west. Source: Ruwer and tributaries water project, a brochure on the Ruwer water project; Ed .: District administration Trier-Saarburg, 2001