The Qudyal starts at the northern slope of Tufan Dagh in
Greater Caucasus, at 3,000 meters above sea level in
Quba District. The river ends its stream by flowing into the
Caspian Sea through
Khachmaz District. The water from the Qudyal is used for irrigation purposes and some of the water also flows into the
Samur–Absheron channel. ==Statistics==