Tammijärvi is a lake in Finland, located on the border of Uusimaa and Kymenlaakso. It spans the municipalities of Loviisa, Pyhtää and Kouvola.
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Tammijärvi is a lake in Finland, located on the border of Uusimaa and Kymenlaakso. It spans the municipalities of Loviisa, Pyhtää and Kouvola.




