Boundary between the complete and progressive mappings carried out as part of the government instruction of 3 June 2015 — Ille-et-Vilaine

In response to the ministerial instruction of 3 June 2015, the Ille-et-Vilaine DDTM proposes: — the “complete” mapping of watercourses carried out in areas where sufficient knowledge of flows is available; — a “progressive” mapping for areas where complete river mapping could not be implemented immediately, due to insufficient knowledge of the territory (display of all available data on flows that are potentially rivers). This layer is the boundary between the complete mapping areas and the progressive mapping areas.