For the territory of the Tumen region there are compiled three morphometrical maps: the map of slope angle of the surface, the map of depth of dividing of relief and the map of density of dividing of relief. Numeric indices obtained by way of metrical mapping (cartometrical method) are laid into foundation of all the maps. Maps of slope angles and depth dividing maps were compiled by means of entire (area) measurements, the map of density of relief dividing was made with the help of the key method and with the of mathematical statistics methods. These maps make possible a more accurate definition of the orographical scheme of West Siberia and enable to give a strict qualitative characteristic to the accepted orographical notions.