Flemish Hydrographic Atlas - Zones, 15 March 2023

Vector file with the classification of Flanders into hydrographic zones. The smallest subdivision (VHA zones) are capturing zones of a VHA watercourse or part of a VHA watercourse. These zones are aggregated down to the level of sub-basins and basins, as referred to in the Integrated Water Policy Decree. The location of the boundaries of the VHA zones is based, among other things, on drainage via surface water, relief and on similar surfaces of the zones. This file is part of the Flemish Hydrographic Atlas.