The Vaalserberg is a hill with a height of 322.4 metres above NAP and is the highest point in the European part of the Netherlands. The Vaalserberg is located in the province of Limburg, at the south-easternmost edge of the country, near the town of Vaals.
The Vaalserberg was the highest point anywhere in the Netherlands until the Caribbean island of Saba, with its 887-metre-high volcano, was incorporated into the country as a "special municipality" in 2010.
Wikipedia https://en.wikipedia.org/wiki/Vaalserberg
Address (Unnamed Road), 4721, Belgium
Coordinates 50°45'12.523" N 6°1'16.506" E