From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Jezioro Jeziorak2.JPG
LocationIława Lakeland
Coordinates53°42′58″N 19°38′44″E / 53.71611°N 19.64556°E / 53.71611; 19.64556Coordinates: 53°42′58″N 19°38′44″E / 53.71611°N 19.64556°E / 53.71611; 19.64556
Basin countriesPoland
Max. length27.45 km (17.06 mi)
Max. width2.4 km (1.5 mi)
Surface area3,219 ha (7,950 acres)
Max. depth13 m (43 ft)

Jeziorak (German: Geserichsee) is a lake in the Iława Lakeland in Warmia-Masuria, Poland. Its area is 3,219 ha (including 20 islands with area of 240 ha). It is 27.45 km long and 2.4 km wide. Maximum depth is 13 m. It is the longest lake in Poland, and ranks 6th by area.


The lake was formed by filling a glacial tunnel valley.