With many years of practical experience, Terracad believes that thorough preparation, followed by detailed site reconnaissance are necessary initial steps to exploration success.  We appreciate the huge amounts of information that can be gained from various public databases that, combined with the satellite-based photogrammetry and the client's particular knowledge of a district, can efficiently evaluate the merits of a site or district. Field evaluation, i.e. prospecting combined with reconnaissance scale geochemistry, enables further refinement of the search for valuable minerals.  Thus modern techniques, historical data and sound knowledge can refine the search and ensure selection of the best possible allocation of resources.