Finland boasts the world’s most precise measurement line in Nummela

Nummela, a small town in Finland, is home to the world’s most accurate geodetic baseline, attracting industry experts, researchers, and surveying professionals from around the globe. Known as the Nummela Standard Baseline, this 864-metre measurement line is renowned for its unmatched precision, with a margin of error within one-tenth of a millimetre.

The line is used to calibrate the world’s most advanced electronic distance measurement devices, essential in the construction of dams, bridges, and nuclear power plants.