File:Aargau Dreiecknetz 1819.jpg

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Deutsch: Dreiecknetz Triangulation Kanton Aargau von 1819 mit Signalpunkt "Kreisacker" für Cheisacher, Kanton Aargau, Schweiz. Punkte auf dem Plan: Basel, Farnsburg, Kreisacker, Lägern, Uto, Gieslifluh, Geissfluh, Wiesenberg, Paswang, Bölchenfluh, Sälisschlösslie, Homberg
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Source Geodätische Grundlagen der Vermessungen im Kanton Aargau von Ing. H. Zoelly, Bern, Chef der Sektion für Geodäsie der Eidgenössischen Landestopographie. Vortrag von 1926. http://schneider-wenk.ch/Literatur-LV/liste-Dateien/Zoelly_AG.pdf
Author Während der Grenzbesetzung 1809, die wegen der nationalen Erhebungen gegen Napoleon einberufen wurde, liess Oberst Hans Conrad Finsler durch Ingenieur Johannes Feer und einige Stabsoffiziere die östliche Schweiz triangulieren. Der Astronom Johann Kaspar Horner und Stabshauptmann Heinrich Pestalozzi verbanden das entstandene Dreiecksnetz mit den Vermessungen der Kantone Basel und Bern.

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