  thumb|250px|location of druzno lake druÅ¼no (; , ) is a body of water historically considered a lake in northern poland on the east side of the vistula delta, near the city of elblÄg. as it is currently not deep enough to qualify as a lake hydrologically and receives some periodic inflow of sea water from the vistula lagoon along the elblÄg river, some suggest that it be termed an estuary reservoir. a village of recent origin also called druÅ¼no is situated near the lake. the german name draussensee, in earlier records called drusensee, is connected to the ancient trade city of truso, which stood within the lands now occupied by elblÄg. the lake is greatly reduced from its original size partly due to large building expansion of housing in the last few decades, but mainly because of the natural death of the lake by sedimentation. the lake is the site of a nature reserve, one of the 13 sites in poland protected under the ramsar convention. ==geography== the central coordinates of the lake are . it lies to the east of the nogat, the main right branch of the lower vistula, at the edge of the lowland of the delta (Å»uÅawy wiÅlane), which is a region of shifting sediments and channels partly controlled by dikes, dams and ditches, about . in area and sometimes up to  below sea level. the delta ends at elblÄg upland (wysoczyzna elblÄska), much of which is wooded. the delta itself is sparsely populated, despite the presence of large cities nearby (gdansk, elblag and others). most of it is rich agricultural land and the rest is a wildlife habitat of great natural beauty. the lake today is a . body of water with a mean depth of about  and a maximum depth of . the lake is drained by the elblÄg river. there is only a  difference in altitude between the lake and elblÄska bay, which projects from vistula lagoon. the surface altitude of these bodies varies for a few reasons, such as wind. when there is a strong wind blowing to the south the bay can
Lakes_of_Poland Ramsar_sites_in_Poland