The laboratory sits almost exactly in the middle of the 12.6-kilometer (7.8 mi) road tunnel, which links Modane to Bardonecchia, Italy, 1,700 meters (5,600 ft) below Fréjus Peak. This depth translates to a meter water equivalent depth of 4,800 meters (15,700 ft). As of 2012, it is the deepest laboratory in the European Union.