Mook en Middelaar is a municipality in the upper southeastern part of the Netherlands, at the northern tip of the province of Limburg and is a part of Stadsregio Arnhem Nijmegen. The municipality is located about 100 km from provincial capital Maastricht and has an area of 18.81 km2 (7.26 sq mi) of which 1.43 km2 (0.55 sq mi) is water.

The Meuse or Maas is a major European river, rising in France and flowing through Belgium and the Netherlands before draining into the North Sea from the Rhine–Meuse–Scheldt delta. It has a total length of 925 km.