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The basis for altitude measurement in Switzerland

On the occasion of the bicentenary of the Repère Pierre du Niton in Geneva, the Territorial Department of the Republic and Canton of Geneva and the Federal Office of Topography swisstopo present to the Swiss public the history and current challenges of altitude measurement in Switzerland and around the world.

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In the 19th century, the reference point of the Swiss height system was defined at the level of the Pierres du Niton in the Rade de Genève. It was from this reference point that all other altitude points in Switzerland were measured and recorded on national maps. More than a commemoration, this bicentenary is an opportunity to make a wider public aware of the importance of setting international technical standards, of current and past surveying methods, and of the changing role of the federal and cantonal authorities in providing and guaranteeing the accuracy of height measurements.

All information on this commemoration can be found on the website of the State of Geneva, 373m6.ge.ch. Various supports such as an explanatory brochure are available for interested persons and schools. Similarly, a new information panel in the Rade de Genève informs visitors and tourists about the significance of the Pierres du Niton.


Federal Office of Topography swisstopo Seftigenstrasse 264
P.O. Box
3084 Wabern
Tel.
+41 58 469 01 11

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Federal Office of Topography swisstopo

Seftigenstrasse 264
P.O. Box
3084 Wabern

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