Marl is a town and a municipality in the district of Recklinghausen, in North Rhine-Westphalia, Germany. It is situated near the Wesel-Datteln Canal, approx. 10 km north-west of Recklinghausen. It has about 90,000 people.
Wikipedia https://en.wikipedia.org/wiki/Marl,_North_Rhine-Westphalia
Official Website https://www.marl.de/
Coordinates 51°38'54.903" N 7°4'58.459" E