Pissa (river)

The Pissa is a river located in northeastern Poland, within the Warmian-Masurian Voivodeship. It is a right tributary of the Pisa River, which itself flows into the Narew River. The Pissa's source is near the town of Wielbark, and it flows generally southwards through a largely agricultural landscape. Its course is relatively short, and it is a minor river in the region. The river is known for its relatively clean water and importance for local ecosystems, supporting various species of fish and aquatic plants.