Editing Swisstopo (section)

=== Modern maps ===
[[File:1285 Les Diablerets.jpg|thumb|One of the 1:25'000 sheets of the national map (1285 Les Diablerets), showing various terrain types]]
[[File:Swisstopo Eiger - Grindelwald.jpg|thumb|Screen capture of the geographical portal, showing a 3D rendering of the 1:25'000 map]]
On 21 June 1935, a Federal Act was passed on the production of the new National Map series, ranging in scale from 1:25.000 to 1:1.000.000. Because of the political situation in Europe, work was started on the 1:50.000 maps.{{clarify|date=June 2016}} For this purpose, a 'M18d' [[Messerschmitt]] was bought for aerial photography, the first aircraft owned by the ''Eidgenössischie Landestopographie''. In 1938, the first 1:50.000 map was published: ''263 Wildstrubel''. From 1939 to 1945, all sales were suspended because of [[World War II]]. In 1939, the ''Eidgenössische Landestopographie'' also procured its first vehicle.

The first 1:25:000 map, ''1145 Bielersee'', was published in 1952. The last 1:25.000 map, ''1292 Maggia'', was published in 1979. This marked the finish of the lowest-scale mapping of Switzerland. The first composite in this scale, ''2501 St. Gallen'', was published in 1956.

The 1:50.000 series was completed in 1963 with ''285 Domodossola''. With the publication of this map, the ''Siegfriedkarten'' have been entirely replaced. The first composite on this scale, ''5001 Gotthard'', was published in 1954.

The 1:100.000 series started with ''41 Col du Pillon'' (1954), and finished with ''47 Monte Rosa'' in 1965. With this publication, the ''Dufourkarten'' have been entirely replaced.

The 1:200.000 series started with No. 3 in 1971 and finished with No. 4 in 1976.

The maps on the scales 1:500.000 and 1:1.000.000 were respectively first published in 1965 and 1994. With the publication of the latter map, the work required by the Federal Act of 1935 was finally finished.

Since 1951, different sorts of leisure maps have been published by the Federal Office of Topography. See above for a list of those.

In 1958, the [[Swiss coordinate system|coordinate system]] of the maps was changed. Before 1958, the centre of the coordinate system, [[Bern]], had coordinates (0, 0). Subsequently, it has coordinates (600, 200). This was done so that any coordinate is either an x-coordinate or a y-coordinate: this prevents confusion about the order of the coordinates.

In 1968, the name officially became ''Eidgenössische Landestopographie'' instead of ''Abteilung für Landestopographie'', although this had been common practice for decades. The English name remained unchanged (''Topographical Survey of Switzerland'').

In 1979, the ''Eidgenössische Landestopographie'' was renamed to the current name ''Bundesamt für Landestopographie''. See above for the names in other languages. Since 2002, the international name ''Swisstopo'' has been used. This name had already been used since the website {{URL|http://www.swisstopo.ch}} went online in 1997.<ref>{{Cite web|url=http://www.swisstopo.ch/en/about/gesch.htm|archive-url=https://web.archive.org/web/20090912124532/http://www.swisstopo.ch/en/about/gesch.htm|url-status=dead|title=Swisstopo - history|archive-date=12 September 2009|access-date=14 February 2019}}</ref>