Dillingen (also: Dillingen an der Saar) () is a town in the district of Saarlouis, in Saarland. It has about 20,000 inhabitants and is divided into the three districts Dillingen-city center, Pachten and Diefflen. The city is located on the edge of the Saar-Hunsrück Nature Park at the mouth of the Prims in the Saar and is located about 10 km from the French border. Dillingen is located about 60 km from Luxembourg City and Trier, 50 km from Metz and 30 km from Saarbrücken and is directly adjacent to the urban area of Saarlouis. In terms of population, it is the second largest municipality in the district of Saarlouis. The Dillinger Hütte steelworks is located here. Geography Geographical location Dillingen lies to the right of the Saar in the northern part of the Basin of Saarlouis and thus in the Saar-Nahe Basin. The Basin of Saarlouis is bounded on the northwest, north and northeast by the heights of the Buntsandstein. They belong to the eastern edge of the Paris Basin and lead into the basin of the Prims. The Prims coming from the Schwarzwälder Hochwald and emanates above the district of Pachten in the Saar. A few kilometers north of the territorial entity of Pachten the Saar unites with the Nied coming from Lorraine. The alluvial deposits in the basin allow good agricultural use. Geology Large-scale overview The rock strata of the coal-saddle of Saarbrücken (Carboniferous) dive to the northwest and it comes to a superposition of younger rocks of the Rotliegend and the Triassic. Dillingen lies on a plaice of the middle Buntsandstein. The rectangular plaice is stretched towards southeast-northwest and bounded to the south by the Carboniferous line of the municipalities of Ensdorf, Hülzweiler and Schwarzenholz. In the southwest and northwest of this plaice of Buntsandstein lie the ridges of the upper Buntsandstein (Röt Formation) and the Muschelkalk between Berus, Siersburg and the valley of Haustadt. The rocks of the lower Rotliegend and the carbon form the northeastern border area. Narrower room The extended valley of the area Dillingen and Saarlouis lies in the area of the middle Buntsandstein, in which the valleys of the Saar and the Prims dug. The left flank of the Saar at Dillingen, the Limberg, is formed by a steep of Grès à Voltzia, while a right flank of the valley is missing. On this bas-relief with overlaying younger gravel blankets, the