Struve Geodetic Arc

The Struve Geodetic Arc is a chain of survey triangulations that go from Hammerfest in Norway to the Black Sea.  They go through ten countries and over .  It made the first accurate measurement of a meridian arc.

The chain was made and used by the German-born Russian scientist Friedrich Georg Wilhelm von Struve in the years 1816 to 1855.  He did this to find the exact size and shape of the earth. At that time, the chain passed through two countries: Union of Sweden-Norway and the Russian Empire. The Arc's first point is in Tartu Observatory.  This is where Struve did much of his research.

In 2005, the chain was added on the World Heritage List. There are 34 plaques or obelisks out of the original 265.

Chain
Norway
Fuglenes in Hammerfest
Raipas in Alta
Luvdiidcohkka in Kautokeino
Baelljasvarri in Kautokeino

Sweden
"Pajtas-vaara" (Tynnyrilaki) in Kiruna
"Kerrojupukka" (Jupukka) in Pajala
Pullinki in Övertorneå
"Perra-vaara" (Perävaara) in Haparanda

Finland
Stuor-Oivi (currently Stuorrahanoaivi) in Enontekiö ()
Avasaksa (currently Aavasaksa) in Ylitornio ()
Torneå (currently Alatornion kirkko) in Tornio ()
Puolakka (currently Oravivuori) in Korpilahti ()
Porlom II (currently Tornikallio) in Lapinjärvi ()
Svartvira (currently Mustaviiri) in Pyhtää ()

Russia
"Mäki-päälys" (Mäkipäällys (Finland 1917/1920-1940) in Hogland (Suursaari)
"Hogland, Z" (Gogland, Tochka Z) in Hogland ()

Estonia
"Woibifer" (Võivere) in Väike-Maarja Parish ()
"Katko" (Simuna) in Väike-Maarja Parish ()
"Dorpat" (Tartu Observatory) in Tartu. ()

Latvia
"Sestu-Kalns" (Ziestu) in Ērgļu novads ()
"Jacobstadt" in Jēkabpils ()

Lithuania
"Karischki" (Gireišiai) in Panemunėlis ()
"Meschkanzi" (Meškonys) in Nemenčinė ()
"Beresnäki" (Paliepiukai) in Nemėžis ()

Belarus
"Tupischki" (Tupishki) in Oshmyany district ()
"Lopati" (Lopaty) in Zelva district ()
"Ossownitza" (Ossovnitsa) in Ivanovo district ()
"Tchekutsk" (Chekutsk) in Ivanovo district ()
"Leskowitschi" (Leskovichi) in Ivanovo district ()

Moldova
"Rudi" near Rudi village, Soroca district ()

Ukraine
Katerinowka in Antonivka, Khmelnytsky Oblast ( )
Felschtin in Hvardiiske, Khmelnytsky Oblast ( )
Baranowka in Baranivka, Khmelnytsky Oblast ( )
Staro-Nekrassowka (Stara Nekrasivka) in Nekrasivka, Odesa Oblast ( )

Other websites

Category:Geodesy
Category:World Heritage Sites in Sweden
Category:World Heritage Sites in Russia