Land and sites

CERN map

CERN has two main sites, Meyrin and Prevessin. It is less known that CERN also has 90 hectare of woods and forest.

• 624 ha of land made available by the Host States (France 516 ha, Switzerland 108 ha)
• 18 fenced sites covering a surface area of 226 ha (France 177 ha, Switzerland 49 ha)
• Meyrin site: 78 ha, Prevessin site: 87 ha
• 24.9 km of fencing

For more details, see https://apex-sso.cern.ch/pls/htmldb_gisdbr/f?p=112:8:17550593577253:.