Steep slopes - contours are closely spaced
Gentle slopes - contours are less closely spaced
Valleys - contours form a V-shape pointing up the hill - these V's are always an indication of a drainage path which could also be a stream or river.
Ridges - contours form a V-shape pointing down the hill
Summits - contours forming circles
Depressions - are indicated by circular contour with lines radiating to the center 
ශිල්ප 64