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Which tributary marks the start of the Vistula Riverâs lower course?
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Vistula River
The Elbe, Oder, and Vistula river basins and their drainage network.
The lower course of the Vistula River begins at the mouth of the Narew River, located northwest of Warsaw. This section extends for approximately 240 miles from the Narew's confluence with the Vistula to the river's estuary in the Gulf of GdaĆsk.1