Grenzaa

Grenzaa or Schoonebeker Diep is a river on the border of Lower Saxony, Germany and Drenthe, Netherlands, near the town Twist. It forms some of the border between the Netherlands and Germany. Through the Coevorden-Piccardie-Kanal and the Coevorden-Vechtkanaal it discharges into the Vechte near Coevorden.