What do contour lines represent on a map?
Contour line, a line on a map representing an imaginary line on the land surface where all points are at the same elevation above a datum plane, usually meaning sea level. The diagram illustrates how contour lines show relief by connecting points of equal elevation.
Why are contour lines important on a map?
These contour lines are an important way of showing the rise and fall of the land on a map. Contour lines show all the places that have the same height above sea level. They also tell us about the slope of the land. On a gentler slope, they are further apart.
What are the basic features of contour lines?
- Contour lines must close, not necessarily within the boundaries of the plan.
- Widely spaced contour indicates flat surface.
- Closely spaced contour indicates steep ground.
- Equally spaced contour indicates uniform slope.
- Irregular contours indicate uneven surface.
What types of contour lines are there in art?
There are several different types of contour line drawings:
In this video, we offer an introduction to topographic maps, including a look at contour lines, contour intervals, index contours, map scales, and the compas…