50°28′49″N 2°17′30″E / 50.4802°N 2.2918°E
Mont Cassel (Dutch: Kasselberg) is a hill in northern France, in the Nord department. The hill rises to a height of 176 metres (577 ft) above sea level, making it the highest of the Westhoek region. At the top of Mont Cassel is the commune of Cassel (Dutch: Kassel), about 30 kilometres (19 mi) from the North Sea. Its geological composition comprises limestone capped with a very hard ferruginous layer of rock.[1]