The Svalia is a 36-km long river in northern Lithuania and a right tributary of the Lėvuo river.LIETUVOS RESPUBLIKOS UPIŲ IR TVENKINIŲ KLASIFIKATORIUS (Republic of Lithuania- River and Pond Classifications). Ministry of Environment (Lithuania). Accessed 2020-01-31.
The town of Pasvalys is located near the mouth of the Svalia and is named after it. Pasvalys in Lithuanian language means "[town] near Svalia".
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