Reclamation is defined as creating a site, which will support organisms in approximately the same percentage and number after the reclamation process is completed, as it did before mining began. Reclamation after mining reduces off-site impacts, mitigates aesthetic damage to disturbed soil, reconstructs topography and hydrologic patterns, and develops soil pedogenic process over time making it similar to its pre-mining morphology. Reclamation comprises complex measures to move huge amounts of earth in short periods while at the same time long planning periods are to be covered. To master this, electronic data processing will turn out to be an indispensable planning instrument whereby especially system analysis and modeling are applied. The computer programme can be used during exploration stage, open cast mine design, ranking of priorities of measures of the reclamation and afforestation on the basis of cost - benefit - analysis. The technological implementation will give the possibility to shorten the time needed for analysis, to economize geological capacity and to apply the programme system rationally in the case of recurring geological – technological studies for the preparation and operation of open cast mines.