Ärlången is a lake in Linköping municipality and Åtvidaberg municipality in Östergötland between Sturefors and Grebo and is part of the Kinda Kanal and Stångån main catchment area. The lake is 18 meters deep, 500 hectares and is located 56.1 meters above sea level. The lake is drained by the Stångån watercourse.
Stora Rängen about 10 km south of Linköping in Östergötland is part of the Kinda Kanal and Stångån main catchment area. The lake is 23 meters deep, has an area of about 1125 hectares and is located 84.1 meters above sea level. The lake is the third largest in Linköping municipality after Roxen and Järnlunden.
Lilla Rängen is 6 meters deep, has an area of about 200 hectares and is located 84.1 meters above sea level. The lake is drained by the Stångån watercourse and Kinda Kanal.
