The research is aimed at solving problems of integration and geo-referencing of published maps, including the old maps, in geographic information systems to create new maps and atlases, GIS projects and information content of the geoportals. Integration of published maps in a geographic information system requires knowing the elements of the mathematical bases of maps (datum, map projection and parameters). The definition of these elements in many cases is a complex task. Automation of processes to determine a mathematical bases is currently a priority area of research in cartography. The method solves an important task of competent and operational information filling of cartographic databases based on scanned maps. An exact knowledge of the mathematical basis provides the possibility of transformation of raster image according to the strict analytical formulas, which increases the efficiency of the creation of general geographic, thematic maps and atlases reduces the time and complexity of work associated with the use of original cartographic materials, and improves the geometric accuracy of map images.