Добро пожаловать к этому международному месту открытки изображения. Benvenuto a questo luogo internazionale della cartolina di immagine. Καλωσορίστε σε αυτήν την διεθνή περιοχή καρτών εικόνων. Willkommen zu diesem internationalen Abbildungspostkarteaufstellungsort. Bienvenue à cet emplacement international de carte postale. Onthaal aan deze Internationale plaats van de beeldprentbriefkaar. Welcome to this International picture postcard site. (Please Click on the Picture for an Enlarged View)

Wednesday, March 20, 2013

Struve chain

In Korpilahti, at the top of Oravivuori, lies one of Finland's six points in the Struve chain. This is a triangulation chain extending from the Black Sea to the Arctic Ocean that was used in the 19th century to establish the shape of the earth. On this spot a triangulation tower has been erected to commemorate the importance of the Oravavuori (or Puolakka) measuring station to the mapping of Finland. Struve's chain gained inclusion on the UNESCO world heritage list in 2005. Thank you dear Ella for this interesting card.

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