The Bioštica (Serbian Cyrillic: Биоштица) is a small river in central-northern part of Bosnia and Herzegovina. The Bioštica meets the Stupčanica at the small town of Olovo. It is the main, left tributary of the Krivaja River. Part of the Bioštica river canyon, "Zeleni Vir", is protected natural monument of Bosnia and Herzegovina. From confluence with the Kaljina river, Bioštica runs toward Olovo for the next 12.3 kilometers.

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Bioštica
Bioštica wellspring near Knežina, Bosnia and Herzegovina, protected landscape
Location
Country	Bosnia and Herzegovina
Municipality	Sokolac, Olovo
Physical characteristics
Source	Vrelo Bioštica
• location	Knežina
• coordinates	43.991181°N 18.779313°E / 43.991181; 18.779313
• elevation	cca.760 metres (2,490 ft)
Mouth	Krivaja
• location	Olovo
• coordinates	44.1260°N 18.5768°E / 44.1260; 18.5768
• elevation	530 metres (1,740 ft)
Length	32.5 kilometres (20.2 mi)
Basin features
Progression	Krivaja→ Bosna→ Sava→ Danube→ Black Sea
River system	Bosna

References