Wikipedia
Biebrza
Biebrza () is a river in north-eastern Poland, a tributary of the Narew river (near Wizna), with a length of 155 kilometres (28th longest) and the basin area of 7,057 km. (7,051 in Poland).
Larger towns in the area:
- Lipsk
- Sztabin
- Goniądz
- Osowiec-Twierdza
- Radzilow
- Wizna
The region is usually divided into lower, central and upper basin areas, each with its own different characteristics.