Rhineland-Palatinate
Rhineland-Palatinate is located in western Germany covering an area of and a population of 4.05 million inhabitants, the seventh-most populous German state. Mainz is the state capital and largest city, while other major cities include Ludwigshafen am Rhein, Koblenz, Trier, Kaiserslautern, and Worms. Rhineland-Palatinate is surrounded by the states of North Rhine-Westphalia, Saarland, Baden-Württemberg, and Hesse. It also borders three foreign countries: France, Luxembourg and Belgium.
Westphalian Lowland
The Westphalian Lowland, also known as the Westphalian Basin is a flat landscape that mainly lies within the German region of Westphalia, although small areas also fall within North Rhine (in the extreme southwest) and in Lower Saxony (on the northern periphery). Together with the neighbouring Lower Rhine Plain to the west, it represents the second most southerly region of the North German Plain, after the Cologne Bight. It is variously known in German as the "Westfälische Bucht" (Westphalian Bay), the "Münsterländer" or "Westfälische Tieflands-" or "Flachlandsbucht" (Münsterland or Westphalian Lowland or Plain).