The Lonja is a river in central Croatia , a left tributary of the Sava . It is 49 kilometres (30 mi) long and its basin covers an area of 4,259 square kilometres (1,644 sq mi).
3-485: The Lonja rises in the Kalnik mountain in northern Croatia, southeast of Novi Marof , at 46°07′57″N 16°22′17″E / 46.132404°N 16.371417°E / 46.132404; 16.371417 . It flows westward until turning south near Breznički Hum , passing east of Sveti Ivan Zelina , and turning southeast near Sveta Helena . East of Lupoglav , it turns south again, passing through Ivanić-Grad and nearing
6-545: The end of its course, the river splits into Stara Lonja ("Old Lonja") that enters Sava at the eponymous village of Lonja; and Trebeš or Trebež that discharges into the Sava some 5.5 km downstream in the eponymous village of Trebež at 45°21′50″N 16°45′13″E / 45.3638°N 16.7537°E / 45.3638; 16.7537 . The main tributaries of the Lonja are: This Central Croatian geography article
9-404: The river Sava . The flow of the Lonja has been altered with man-made canals: the diversion canal Črnec – Lonja (Žutica), the flood relief canal Lonja – Strug, and the connecting canal Zelina – Lonja – Glogovnica – Česma . It then flows parallel to the Sava for the rest of its course, and the nature park Lonjsko polje , a protected area, covers the remainder of the Lonja river basin. Near
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