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Hachure map
Mode of representing relief on a map / From Wikipedia, the free encyclopedia
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Hachures (/ˈhæʃʊərz/) are an older mode of representing relief. They show orientation of slope, and by their thickness and overall density they provide a general sense of steepness. Being non-numeric, they are less useful to a scientific survey than contours, but can successfully communicate quite specific shapes of terrain. They are a form of shading, although different from the one used in shaded maps.
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Hachure representation of relief was standardized by the Austrian topographer Johann Georg Lehmann in 1799.[1] Hachures may be combined with other ways of representing relief, such as shades, the result being a shaded hachure map; an example of such a map is the Dufour Map of Switzerland.[2] Emil von Sydow designed maps with coloured hachures: green for lowlands and brown for highlands.