Orljava is a river in Slavonia

Slavonia

Slavonia is a geographical and historical region in eastern Croatia...

, eastern Croatia

Croatia

Croatia , officially the Republic of Croatia , is a unitary democratic parliamentary republic in Europe at the crossroads of the Mitteleuropa, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Croatia covers ...

, a left tributary of Sava. It is 89 kilometres (55.3 mi) long and its basin covers an area of 1494 square kilometres (576.8 sq mi).

Orljava rises in the mountainous forested areas of Psunj

Psunj

Psunj is a mountain in the southwestern Slavonia region in eastern Croatia. It is the highest mountain of Slavonia, with the highest peak of Brezovo polje at 984 m.a.s.l. In the north it extends to Ravna gora and Papuk, while otherwise it is surrounded by lowlands...

, south of Bučje

Bučje

-Croatia:*Bučje , a village near Pleternica in Požega-Slavonia County, Croatia*Bučje , a village near Pakrac in Požega-Slavonia County, Croatia-Serbia:*Bučje *Bučje *Bučje *Bučje *Ravno Bučje...

. It receives influx from smaller rivers that rise in the mountains of Papuk

Papuk

Papuk is the largest mountain in the Slavonia region in eastern Croatia, near the city of Požega. It extends between Bilogora to the northwest, Krndija to the east, and Ravna gora and Psunj to the southwest....

 and Požeška gora

Požeška Gora

Požeška Gora, lit. the Požega Hill, is a mountain located south of Požega, Croatia in the region of Slavonia. The mountain is located east of Psunj and west of Dilj. The highest peak lies at 616 meters above sea level....

. Near Srednje Selo

Srednje Selo

Srednje Selo is a village in Požega-Slavonia County, Croatia. The village is administered as a part of the City of Pleternica.According to national census of 2001, population of the village is 312. The village is connected by the D38 state road....

 it starts turning southeast, and at Pleternica

Pleternica

Pleternica is a town in the region of Slavonia, Croatia, southeast of Požega, in the Požega Valley . The population of the municipality is 11,286, with 3,443 in Pleternica itself ....

 it merges with the river Londža that rises in Krndija

Krndija

Krndija is a hill and village in Slavonia, Croatia, extending eastwards from Papuk. It is located south of Orahovica and Našice and north of Požega....

. It then runs south to pass between Požeška gora and Dilj

Dilj

Dilj is a mountain in south-central Slavonia, located in eastern Croatia. Of all the Slovanian mountains Dilj is lowest-lying at 471 meters. It is located north of Slavonski Brod and south of Krndija.-References:...

, when it turns to the southwest. As it flows south of Dragovci, the river turns south and eventually flows into the river Sava just west of Slavonski Kobaš, at 45.106777°N 17.724656°E.