There are 3 ways to show height above sea level on a map: contour lines which join points of equal height; spot heights which are specific measured points; and triangulation points which are concrete pillars used for measurement. Contour lines never cross, are orange, thin and faint, form circuits, and are closer together for steeper land and farther apart for flatter land.

2. There are 3 ways of showing the height of the land above sea level: Contour lines- these are lines which join up points of equal heights on land Mapping Height 10 40 30 20

3. 2) Spot heights- these are points on a map where map makers have checked the height of the land. You would not find anything on the ground 122 Mapping Height

4. 3) Triangulation points- these are concrete pillars found at the top of the hill, and are used to measure the land 274

6. The Contour Rules Contour lines never cross Contour lines are orange in colour Contour lines are thin and faint lines on a map Contour lines form a circuit Contour lines are curved lines If the land is steep Contour lines are close together If the land if flat they are far apart 8. On modern maps, Contours go up in 5 metre or 10 metre intervals