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Description
In the 18th century, François Cassini de Thury was tasked with drawing a map of France by Louis XV. He created an observatory to draw the first map of the region on a scale of 1:86,400 thanks to the newly discovered triangular measurement technique.
Technical Information
Altimetric profile
Additional information
Price(s)
Free access.
Updated by
Destination Monts du Lyonnais - 23/10/2026
www.montsdulyonnaistourisme.fr
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Open period
All year round daily.
Contact
Phone : 04 82 90 10 85
Email : contact@montsdulyonnaistourisme.fr
Website : http://www.montsdulyonnaistourisme.fr
Facebook : https://www.facebook.com/montsdulyonnaistourisme/?locale=fr_FR
Animals
Yes
