Geography of the European Netherlands extreme south of the country does the land rise to any significant extent, in the foothills of the Ardennes mountains. This is where Vaalserberg is located, the highest point on the European part of the Netherlands at above sea level. The highest point of the entire country is Mount Scenery (887 metres or 2,910 ft), which is located outside the European part of the Netherlands, on the island of Saba. The Netherlands is located at mouths of three major European rivers (Rhine, Maas or Meuse, and Scheldt). In November 2016, the Netherlands and Belgium agreed to cede small, uninhabited parcels
Flood control in the Netherlands these waters. The Zuiderzee Works (Zuiderzeewerken) are a system of dams, land reclamation, and water drainage works. The basis of the project was the damming off of the Zuiderzee, a large shallow inlet of the North Sea. This dam, called the Afsluitdijk, was built in 1932–33, separating the Zuiderzee from the North Sea. As result, the Zuider "sea" became the IJsselmeer—IJssel lake. Following the damming, large areas of land were reclaimed in the newly freshwater lake body by means of polders. The works were performed in several steps from 1920 to 1975. Engineer Cornelis Lely played a major part in