Hachures don't indicate the Absolut heights thus regions like the hills and plateaus don't have the same elevation.
In the hilly countries, the hachures obstruct the details of topography.
They take a long time to drawn and are costly.
Explanation:
A hachure is a mode of relief representation. It shows the orientation of the slope and thickness over the density. It provides a sense of steepness. They represent forms of shading ad can be sued with different maps. These are done traditionally in mono color.
