📏 Struve Geodetic Arc
19th-century meridian measurement chain across Europe
📋 Fast Facts
- Chain of 265 triangulation points spanning 2,820 kilometres from Norway to the Black Sea
- Surveyed between 1816 and 1855 under Friedrich Georg Wilhelm von Struve
- Crosses ten countries: Norway, Sweden, Finland, Russia, Estonia, Latvia, Lithuania, Belarus, Moldova, and Ukraine
- UNESCO World Heritage Site since 2005, with 34 points recognized as heritage monuments
The Struve Geodetic Arc is a chain of survey triangulation stations stretching from Hammerfest in Norway to the Black Sea, established in the 19th century to measure a meridian and determine the exact shape and size of the Earth. Mäki-Päällys represents one of the northernmost markers of this international scientific collaboration. The arc was measured between 1816 and 1855 under the supervision of Friedrich Georg Wilhelm von Struve, a German-Russian astronomer, and stands as a remarkable ...