1) Crosshatch 2) Elevation line on map 3) Hatch 4) Hatching 5) Shading 1) Crosshatch 
shading or lines showing a slope on a map
• (n.) A short line used in drawing and engraving, especially in shading and denoting different surfaces, as in map drawing. See Hatching.
(from the article `map`) ...or perspective appearance as envisioned by the cartographer. Little effort was made at true depiction as this was beyond the scope of available ...
Hach'ure (hăch'ur) noun [ French, from hacher to hack. See Hatching .] (Fine Arts) A short line used in drawing and engraving, especially in shading and denoting different surfaces, as in map drawing. See Hatching . 
In cartography, hachures are the lines which indicate the steepness of gradient of a hill or slope by virtue of how close together they are drawn.