The work used the correlation between geomorphological features and soil formation to evaluate and map soils of the region of Lavras, MG, differentiating classes of soils with argillic B horizons. The study area was limited by geographic coordinates 21°10'23"/21°19'22" S and 45°04'36"/45°33'23" W, comprising portions of topographic sheets of IBGE: Nepomuceno, Carmo da Cachoeira, Lavras, Itumirim, Nazareno e Itututinga, scale 1:50.000. The geomorphological features were assessed on the basis of slope classes with five selected slope gradients: nearly level - 0 - 3%; gently sloping - 3 - 12%; strongly sloping - 12 - 24%; moderately steep - 24 - 45 %; and steep - > 45%. Using a GIS the map of slope classes of the region was generated. The model of soil distribution in the landscape was exhaustively checked by sound field work. The most relevant soil profiles were described according to Lemos & Santos (1984). Physical and chemical analyses were carried out to enable precise classification of these soils. The results showed Latossols occurring on nearly level and gently sloping surfaces. Hydromorphic and Alluvial soils were found in the class nearly level, with slope gradient of 0 to 3%, but at different parts of the landscape, related to flooding plains and terraces. Within the slope classes strongly sloping and moderately steep (12 to 24% and 24 to 45%) four classes of soils with argillic B horizons were mapped: Yellow-Red Podzolic, Dark Red Podzolic, Dusky Red Podzolic and Reddish Brunizem. These were separated using the correlation between soil formation and geology. In the slope class steep (slope gradient > 45%) occurred Cambic and Litholic soils. On the basis of this correlation and using a GIS, a Soil Map of the Region of Lavras, differentiating soils with argillic B horizons was produced.