Struve Geodetic Arc

The Struve Geodetic Arc is a triangulation measurement chain, formed in 1816–1852, stretching from the 26° east longitude along the meridian from Hammerfest (Norway) on the shores of the Arctic Ocean to Ismail (Ukraine), by the Black Sea, i.e. from 4 °20’ to 70°40’ North latitude. The Arc covers ten states (nowadays): Norway, Sweden, Finland, Russia, Estonia, Latvia, Lithuania, Belarus, Ukraine and Moldavia.

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