EntityQ869117· pop 9· linked from 4 articlesEłk LakeSign in to savelake, Ełk river in PolandConnectionsPolandCountryGermanEntityPolishEntityLithuanianEntitygeographic coordinate systemEntityInternational Standard Book NumberEntitydigital object identifierEntitydrainage basinEntityWarmian-Masurian VoivodeshipEntityPleistoceneEntityeutrophicationEntityEłkEntitymicroplasticsEntitydischargeEntityBiebrzaEntityMasurian Lake DistrictEntitycoastline paradoxEntitySzarekEntityCategoriesLakes of PolandLakes of Warmian-Masurian Voivodeship