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Name: Gravière Brock topographic map, elevation, terrain.
Location: Gravière Brock, Hermalle-sous-Argenteau, Oupeye, Liège, Wallonie, 4680, Belgique (50.70615 5.67089 50.71154 5.67481)
Average elevation: 246 ft
Minimum elevation: 177 ft
Maximum elevation: 476 ft