Pilica is a river in central Poland , the longest left tributary of the Vistula river , with a length of 319 kilometres ( 8th longest ) and the basin area of 9,273 km2 ( all in Poland ) .
Pilica is a river in central Poland . It has a length of 319 kilometres ( 8th longest ) and an area of 9,273 km2 ( all in Poland ) .