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COPA (which means "COncentración PArcelaria", the Spanish term of "land consolidation") is an experimental tool integrated into a GIS environment to aid rural engineers to develop land consolidation projects. The system supports several tasks implemented as heuristic processes based on experts' experiences. The tool includes automated generation of nearly optimal parcel reallocations and an environment to refine and evaluate the proposed solutions. It also provides an integrated framework to manage spatial and administrative consolidation information that can be accessed via the web. As a whole, COPA is a powerful tool for decision making that dramatically reduces time and cost of land consolidation plans. This paper outlines the COPA application domain, components and functionalities, as well as our first experiences of its use in a pilot consolidation area.