The Topographic Atlas of Switzerland ( German : Topographischer Atlas der Schweiz ), also known as the Siegfried Atlas or Siegfried Map (German: Siegfriedkarte ; French : Carte Siegfried ), is an official map series of Switzerland . Its publication was begun by the Federal Topographic Bureau under Hermann Siegfried [ de ] , and continued from 1870 to 1926. During this period the individual maps were drawn by different lithographers, including Walter Hauenstein , Georg Christian von Hoven and Rudolf Leuzinger . Since it is, in today's parlance, not strictly an atlas but a map series, map historians now describe it only by the expression Siegfried Map .
11-728: The Siegfried Map was based on the original records that had already been created for the earlier Dufour Map . However, the Siegfried Map offered greater precision than the Dufour Map, by using a scale of 1:25,000 for the Swiss Plateau , the French Prealps , the Jura Mountains and southern Ticino , and a scale of 1:50,000 for other mountain regions and the Swiss Alps . The area covered by
22-465: A precise idea of Swiss geography of the second half of the 19th century and the early 20th century. One can see villages that have disappeared, glaciers that have retreated, and names of mountains that have changed since that time. Different editions of the Dufour Map give a reliable overview of demographic trends in Switzerland, the extension of settlements and significant changes in the territory, such as
33-598: The Dufour Map (German: Dufourkarte ; French : Carte Dufour ) is a 1:100 000 scale map series depicting Switzerland for the first time based on accurate geometric measurements. It is also the oldest official map series of Switzerland. From 1796 to 1802, the Atlas Suisse was published in Aarau by Johann Heinrich Weiss , Johann Rudolf Meyer and Joachim Eugen Müller . The Atlas Suisse map series consisted of 16 sheets,
44-501: 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). The Dufour Map was reproduced by an engraving print process, initially by intaglio, and later (from 1905) by flat plate impression. Until 1939, there were occasional revised editions of
55-416: The 1:50 000 pages). 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. The print mode used for the 1:25,000 pages
66-475: The Dufour Map sheets. The initially monochromatic map was enhanced in 1908 by the addition of an extra color, and then in 1938 by yet another colour. The countryside (which in Switzerland is mostly hilly or mountainous) is depicted on the Dufour Map with hachures , which makes it appear especially vivid. Relief and elevation differences under the surface of lakes were symbolized by contours . This so-called "Swiss style" depiction received much praise, and earned
77-616: The Topographic Bureau several international awards. Dufour's work enabled the Swiss Confederation to have a valuable tool for its army and administration. Some surveys for the map had been conducted by the Cantons, but the federal government had made its contribution by tracking data in mountainous areas with difficult access. These actions had taken place in 1818, and then during the period 1836 to 1862. The Dufour Map also conveys
88-526: The damming of rivers, the construction of roads , and railway development . From 1870, a map series in the 1:25,000 scale of the original Dufour Map images was published under the official name Topographic Atlas of Switzerland (German: Topographischer Atlas der Schweiz ), and also known as the Siegfried Atlas or Siegfried Map (German: Siegfriedkarte ; French: Carte Siegfried ). Swiss army Too Many Requests If you report this error to
99-447: The former scale was initially divided into 462 pages, and the other area into 142 pages, with the two areas overlapping in places. A format of 35 centimetres (14 in) x 24 centimetres (9.4 in) for each page was common to both scales. Another significant departure from the Dufour Map was the presence of contours to symbolize the relief (a granularity of 10 metres (33 ft) for the 1:25 000 pages, and 30 metres (98 ft) for
110-495: Was initially intaglio , and from 1905 a printing plate. The 1:50,000 pages were printed via a lithography process, and from 1910 by intaglio. Until 1949, there were occasional revised editions of Siegfried Map pages. From 1952, the Siegfried and Dufour Maps were replaced by the new National Map of Switzerland . Dufour Map The Topographic Map of Switzerland ( German : Topographische Karte der Schweiz ), also known as
121-625: Was produced by a copperplate or intaglio printing process, and depicted the whole of Switzerland at a scale of 1:120,000. Publication of the Dufour Map was begun in 1845 by the Federal Topographic Bureau under Guillaume-Henri Dufour , and continued to December 1864. The Dufour Map was based on measurements by the Cantons and the Swiss Confederation . The original images for the Dufour Map were created in 1:25,000 scale (for
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