Lake Hjälmar

Lake Hjälmar (area 483sq.km/190sq.mi, greatest depth 28m/90ft) extends eastward into Södermanland, and is linked with Lake Mälar by the Hjälmar Canal and the Arbogaå. Between 1877 and 1888 the water level was lowered by 1.80m/6ft, thus making an additional 27,000 hectares/67,500 acres of land available for cultivation. The lake is well stocked with fish and is frequented by many species of birds. At Segersjöviken is a bird-watching tower.