While structure contours are explained in previous chapter, in this chapter the interpretation of map patterns using structure contours is further explored. Terms to commonly describe map patterns, as inlier and outlier, are explained in the first paragraph. The insertion of outcrops using structure contours is explained in section 6-2. The third paragraph helps you determine azimuth/dip from three elevations points. Finally the completion of the associated map patterns is discussed for surface ans subsurface data.