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map the same year, the Carte topographique du Canton de Genève. Topographic surveys also started in the alpine regions of Switzerland. These had their first results in 1845, a year later than planned, when a map scaled 1:100.000 was published. This was the start of what are termed Dufourkarten (Dufour's Maps). The topographic survey finished in 1862. To honour Dufour, the Swiss government decided to rename the highest peak on the Dufourkarten from Höchste Spitze to Dufourspitze:

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