[1] The river takes its source under the name Kurtovsko Dere at an altitude of 1,992 m, about 1.7 km north of the now abandoned Hristo Smirnenski Refuge in the Chakaritsa locality, eastern Rila mountain range.

It initially flows southwards and southeast of the refuge turns east, and then northeast in a narrow steep valley that forms the orographic boundary between the major mountain ranges Rila and Rhodope.

[2] The Yadenitsa Reservoir was under construction between 1997 and 2005 but was put on hold due to lack of financing.

The waters of the Yadenitsa are diverted via a tunnel to the Chaira Reservoir to be utilized for electricity generation.

In its lower course the waters are used for irrigation and for industrial supply of the Belovo paper factory.