The Mapping Archaeological Heritage in South Asia (MAHSA) project will document the endangered archaeology and cultural heritage of the Indus River Basin and the surrounding areas and publish this information in an Open Access Arches geospatial database. This database will be a collaborative output between the partner institutions (Cambridge, ICAC and UPF) as well as many public bodies in South Asia (e.g. archaeological services) that will serve as the primary mapping resource and research repository for the archaeological and endangered cultural heritage of the Indus River Basin and the surrounding areas. It aspires to become sustainable by being the default management database for local heritage stakeholders.