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The National Maps of Switzerland, also referred to as the Swisstopo maps, are a set of official map series designed, edited and distributed by Swisstopo, the Swiss Federal Office of Topography. Each map series is based on an oblique, conformal , cylindrical projection ( Mercator projection ), with a Swiss Coordinate system ( CH1903 + ).
Sample detail of the 1:50,000 National Map of Switzerland, showing the Blüemlisalp glacier. The cartography of Switzerland is the history of surveying and creation of maps of Switzerland. Switzerland has had its current boundaries since 1815, but maps of the Old Swiss Confederacy were drawn since the 16th century.
The original images for the Dufour Map were created in 1:25,000 scale (for the Swiss plateau) and 1:50,000 (for the mountains). However, the Dufour Map was published in 1:100,000 scale, enabling the territory of Switzerland to be divided into 25 sheets, each of which measured 70 centimetres (28 in) x 48 centimetres (19 in).
In both cases, no 1:25.000 maps have been published for the corresponding part of the 1:50.000 map: at the 1:25.000 scale, some maps are a tiny bit larger than others, to be able to get all of Switzerland onto a map without the need of maps with less than 0.1% domestic territory on it.
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In addition, three colors were used directly for printing, whereas the Dufour Map was initially monochrome. On the Siegfried Map, the colours used were brown for the contour lines on vegetated terrain, blue for water and contour lines on glaciers, and black for the rest. The Siegfried Map projection was a cone equivalent, as for the Dufour Map.
Original – Electronic version of the General Map of Switzerland (1:300'000) published by the Federal Office of Topography Reason high quality and detailed map, high EV Articles in which this image appears National Maps of Switzerland, Cartography of Switzerland, Geography of Switzerland FP category for this image
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