Beshar River – Boyer Ahmad (Yasuj)

This river originates from the south east of upper Boyer Ahmad as well as Ardakan and Mamasani Mountains in Fars Province and continues towards the north east of the lower part of Boyer Ahmad. The major sources of this river are Ganjoun, Tizab and Tang-e-Sorkh rivers. After passing through northeastern part, it enters the Khersan River, where it joins Karoon River. Here it is known as the river of Barez that is at the northern slopes of Dena in the upper Boyer Ahmad and Tayebi areas. Finally it enters the Persian Gulf.