This Layer contains the Vertical Vulnerability Map of the transboundary aquifer located within the Skadar/Shkoder - Buna/Bojana area shared by the two countries elaborated in the context of the Pilot Project "Design and testing of a multipurpose transboundary groundwater monitoring network in the Extended Drin River Basin" (DRIN) 2017 – 2020.Vertical vulnerability refers to the vulnerability of contamination threats from land-based pollution. For each polygon of the map, the numeric value of the Vertical Vulnerability class is in the field VV.