Wkra is a river in north-eastern Poland, a tributary of the Narew river, with a length of 255 kilometres and a basin area of 5,348 km2 - all within Poland.Statistical Yearbook of the Republic of Poland 2017, Statistics Poland, p. 85-86 Among its tributaries are the Łydynia and the Płonka.
Towns and townships: Bieżuń Radzanów Strzegowo Glinojeck Sochocin Joniec Pomiechówek Nowy Dwór Mazowiecki
See also: Rivers of Poland
References