Krivaja (Bosna)

river in central Bosnia and Herzegovina

The Stupčanica () is a small river in central-northern part of Bosnia and Herzegovina. The Stupčanica meets with the Bioštica at the small town of Olovo, and with the Bioštica it makes a pair of the Krivaja source headwaters and its right tributary. The Stupčanica river canyon, Čude Canyon, is a protected natural monument of Bosnia and Herzegovina.

The Bioštica () 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 a protected natural monument of Bosnia and Herzegovina. From confluence with the Kaljina river, the Bioštica runs toward Olovo for the next . thumb|Bioštica wellspring, protected landscape.