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 do contour lines represent on a topographic map?

Back

Contour lines represent elevation and the shape of the terrain. Lines that are close together indicate steep slopes, while lines that are far apart indicate gentle slopes.

Front

What is a contour interval?

Back

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

Front

How do you determine the elevation of a point on a topographic map?

Back

To determine the elevation of a point, find the nearest contour line and read the elevation value associated with it.

Front

What does it mean if contour lines form a closed loop on a topographic map?

Back

If contour lines form a closed loop, it indicates a hill or a mountain. The elevation increases as you move towards the center of the loop.

Front

What is the significance of a contour interval of 20m?

Back

A contour interval of 20m means that each contour line represents a change in elevation of 20 meters.

Front

How can you identify a valley on a topographic map?

Back

A valley is typically represented by contour lines that form a 'V' shape pointing upstream.

Front

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

Back

A profile view provides a side view of the terrain, showing the elevation changes along a specific line drawn on the map.

Front

How do you match a topographic map to its profile?

Back

To match a topographic map to its profile, compare the elevation changes and shapes of the terrain represented in both the map and the profile.

Front

What is the elevation of a point located between two contour lines?

Back

The elevation of a point located between two contour lines can be estimated by averaging the elevations of the two nearest contour lines.