4,807.81 meters: Mont-Blanc returns to the altitude of our childhood

INFOGRAPHICS – The highest peak in Europe reaches 4,807.81 m. This is the last measurement carried out in situ by the expedition of the surveyors. It confirms a continuous decline for about fifteen years.

Since 2001, the highest mountain in Europe has been measured every two years to the nearest ten centimeters. To carry out such an ultra-precise survey, an expedition made up of mountain guides and expert surveyors climbs to the top, equipped with instruments adapted to extreme conditions. This year the roped party set off from Chamonix on September 16 in the rain. She reached her goal the next day with beautiful weather.

The new figure was revealed Wednesday, September 29 in Saint-Gervais. The summit now stands at 4,807.81m. “We find the altitude of our school books when we were little”, confides Denis Borrel, vice-president of the departmental chamber of surveyors of Haute-Savoie. That determined by the Vallot cousins ​​at the end of the 19th century.

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