A large amount and variety of geographic information has been produced to support the four years' rehabilitation and reconstruction (RR) process following the earthquake and tsunami disasters in December 2004 in Aceh province, Indonesia. After the RR process, the geographic information has been handed over to the Aceh Geospatial Data Center (AGDC), managing information services and supporting decision making for sustainable development in the Aceh province. However, AGDC has no integrated geographic information system (GIS). Therefore, the authors developed a prototype for an integrated GIS. The system is implemented with ESRI products such as ArcIMS Server, ArcGIS Server, ArcSDE Geodatabase connection for PostgreSQL/PostGIS and ArcGIS Desktop. The system consists of various geographic information produced during the RR process and geographic information related to Aceh province, which has been collected by the first author. Metadata and Metadata catalog service are also provided by the system. The target users of the system are AGDC staff, local government decision-makers or end users, and application developers. Examples of analysis using the system indicate the potential to support the planning of sustainable development. AGDC has evaluated that the system is suitable for implementation. Consequently, the authors concluded that the system will be useful for Aceh province, Indonesia.