Since the development of Geographical Information System (GIS) and the increasing popularity of mobile devices, many standardization bodies such as OGC (Open Geospatial Consortium)had proposed the implementation of Location Based Services (LBS) applications. Furthermore, map service providers had started to use the correspondent devices for visualizing geographical data essentially based on the users’ location, his contextual information and his profile. However, many geographical databases (GDBs) could offer slightly different data/metadata for the same requested service. Advanced LBS have to improve interoperability among them. In this paper,we had elaborated many reasoning algorithms and build/match extended geo-ontology framework for the integration of homologous objects on mobile devices. Our approach is illustrated by a tourism LBS case study and could be applied for any geographical domain where position, place name, semantic details and visual aspects' (icon, texture, etc.) ambiguities will be integrated automatically through our platform.