Signal de Botrange is the highest point in Wallonia and in Belgium, located in the High Fens (Hautes Fagnes in French, Hohes Venn in German, Hoge Venen in Dutch), at 694 metres (2,277 feet).

Since 1999, it was replaced by an automatic station of the Royal Meteorological Institute of Belgium installed on Mount Rigi (scientific station of the High Fens - University of Liège), which is between the Signal and Baraque Michel which was formerly the highest point in Belgium prior to the annexation of the Eastern Cantons in 1919.

A stone tower built in 1933/34 by François Fagnoul from Ovifat on the Botrange crowned a steel weather vane with the relieved name SICCO CAMPO until World War II.

The data transfer takes place in real time via the intermediate station Botrange, which was set up directly next to the existing tower.

[3] The summit of Belgium is home on its flanks to several sources of Ardennes rivers, all belonging to the Mosan basin, including the Helle, Roer and Schwarzbach to the north (but flowing here to the east), Bayehon to the south, and the Trôs Marets to the west.