Groß-Gerau is a Kreis in the south of Hesse, Germany. Neighboring districts are Main-Taunus, district-free Frankfurt, Darmstadt-Dieburg, Bergstraße, Alzey-Worms, Mainz-Bingen, and the district-free cities Mainz and Wiesbaden.
Wikipedia https://en.wikipedia.org/wiki/Groß-Gerau_(district)
Coordinates 49°55'10.004" N 8°29'6.873" E
