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A shaded relief rendering of rock faces on Alpine maps.
Also known as: Swiss rock rendering, Felszeichnung, Alpine rock drawing
Swiss national mapping renders rock as a hand-drawn shaded relief rather than as a hatched symbol, a technique developed for Alpine terrain where the shape of the rock is the navigable information. It is often cited as the most detailed rock rendering in national cartography.
Renders rock faces as a shaded relief drawing rather than as a conventional symbol, showing the actual form of the ground.
Contexts: Maps
Was developed for Alpine mapping, where the shape of a rock face determines whether a route exists at all and a generic hatched symbol would say nothing useful.
Contexts: Maps
An outline of finely graded shading following the shape of the ground, with lit and shadowed faces drawn rather than a repeating pattern.