The Mapping Archaeological Heritage in South Asia (MAHSA) project, now in its Phase 2, will continue to 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. Over the course of Phase 2, the project will expand its scope to include the Ganges River Basin, Baluchistan and the coastal areas of India and Pakistan. Our work is stored in a database, whose collaborative output serves as the primary mapping resource and research repository for the archaeological and endangered cultural heritage of these regions. The project’s sustainability is centred around this resource which forms part of a management database for local heritage stakeholders so they can work on the protection and preservation of heritage in Pakistan and India in the future.