A major application for gis and mapping services is capturing contours from usgs topographic maps and other sources. Inca uses state, Of, The, Art technology to convert existing contour maps into digital form. The expertise that inca has attained through 2 a wealth of expertise gained over provides files, The years of extraordinary accuracy. We can produce fully attributed files with elevation values for virtually any platform. Inca has completed contour projects ranging from simple line work in autocad format.