Robertville地形图
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Ardennes
Belgium > Liège > Verviers > Robertville
The region was uplifted by a mantle plume during the last few hundred thousand years, as measured from the present elevation of old river terraces.
平均海拔：659 米
Signal de Botrange
Belgium > Liège > Verviers > Robertville
In 1923, the 6-metre (20-foot) Baltia tower was built on the summit to allow visitors to reach an altitude of 700 m (2,300 ft). 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. Meanwhile, the…
平均海拔：658 米
