| Ridge | Water Divide |
|---|---|
| It is a long and narrow highland sloping steeply downwards on its sides. | A line which separates two adjacent drainage basins is known as water divide. |
| Contours showing a ridge are elongated and are closely spaced. | The side on which the ridge is steeper, the contours are drawn closely together, whereas the side on which the ridge is gentle, the contours are drawn far apart. |