Contour+lines,+Spot+heights,+Shading+and+Colour


 * __Contour lines__**

- Join areas of equal height with a line




 * __Spot heights__**

- Spot heights are points measured to be exactly the height above sea level.




 * __Shading__**

-Shading, colours represents contours in the land -Generally, dark an light shading/colours are used to differentiate the countours