This study aims at evaluating the potential utilization of remote sensing products in soil survey. The visual interpretation of the superficial drainage patterns and relief characteristics of the Cardoso Island State Park is presented. The land stratification into homogeneous areas, called physiographic units, was performed through the interpretation of aerial photographs (scale of 1:25,000); the false color composite Landsat TM image (5, 4 and 3) scale 1:50,000; and radar image - GEMS 1,000 band X - semi controlled mosaic, scale 1:250,000. Each unit was characterized according to descriptive and quantitative elements of drainage and merely descriptive of relief. Through the interpretation elements the grouping analysis (Multivariable) was tested in the definition of the groups of physiographic units related to the different kinds of soil. From the analysis and discussion obtained the following conclusions can be drawn: the greatest contribution to the drawing of the superficial drainage network and the delimitation of homogeneous areas was given by the interpretation of aerial photographs followed by the Landsat TM images in relation to the radar images; stream frequency (among quantitative features), degree of control and angularity (among qualitative features) of the superficial drainage network as well as topographical position, relief kind and class were the most efficient variables in the separation of groups of physiographic units, both in the scale 1:25,000 and 1:50,000; the interpretation elements in the several remote sensing products as applied to the study of soils should not be analyzed separately but together; and the methodology used in the Cardoso Island is potentially valid in soil surveys at the level of semi-detail with the use of aerial photographs in the approximate scale of 1:25,000, at the level of recognition with orbital image in the scale of 1:50,000 and at a more general level with radar image in the scale of 1:250,000.