Topography maps are best used for which activities?

To see land elevation or underground elevation.

Explanation:

You can use it to know what it under the ground before digging if you need a space to construct a building or parking. Or perhaps, even when building a house.

Topography: In simple terms arrangements of the a various in a more systematic order to provide more authentic and real information or set of data to each individual about the certain place, which may be Urban or rural areas etc.