Topographic Maps

Front

What is a topographic map?

Back

A topographic map is a detailed and accurate graphic representation of cultural and natural features on the ground, showing elevation changes through contour lines.

Front

What is a contour line?

Back

A contour line is a line on a map that connects points of equal elevation, indicating the shape and steepness of the terrain.

Front

What does a contour interval represent?

Back

The contour interval is the vertical distance or difference in elevation between contour lines on a topographic map.

Front

What does it mean if contour lines are close together?

Back

If contour lines are close together, it indicates a steep slope.

Front

What does it mean if contour lines are far apart?

Back

If contour lines are far apart, it indicates a gentle slope.

Front

What is an index contour?

Back

An index contour is a thicker contour line that is labeled with its elevation, typically every fifth line on a topographic map.

Front

How can you determine the steepness of a slope on a topographic map?

Back

You can determine the steepness of a slope by looking at the spacing of the contour lines; closer lines indicate a steeper slope.

Front

What is the purpose of a contour legend?

Back

A contour legend explains the meaning of the contour lines and intervals on a topographic map.

Front

What is the significance of a profile view in relation to a topographic map?

Back

A profile view shows a side view of the terrain, illustrating the elevation changes along a specific line on the map.

Front

How do you calculate the slope between two points on a topographic map?

Back

To calculate the slope, find the difference in elevation between the two points and divide it by the horizontal distance between them.