Samur–Absheron channel starts near the Qaleysuvar Mountain in Khachmaz Rayon and flows to the south until it discharges into the Jeyranbatan reservoir. Its length is 195 km (121 mi). The first section (Samur-Devechi) of the channel which ends intersecting Ataçay river is 110 km (68 mi) and was built in 1940 for irrigation purposes. The second 85 km (53 mi) section starts from Ataçay and ends at Jeyranbatan reservoir. Its construction was completed in 1956. Until 1953, the channel was named Joseph Stalin channel. In the recent years, the channel was extended for 72 km (45 mi) from Jeyranbatan reservoir to deep into Absheron Peninsula and was called Main Absheron Channel. Samur–Absheron channel has over 350 hydro-technical structures and two pumping stations handling the flow of water. One of them is located in Hacı Zeynalabdin settlement near Sumgayit. It was previously called "Nasosny" (translated as "pumping station" in Russian language). According to information from 1986, the irrigation basin of the channel was 100,000 ha (1,000 km2). The channel also provides drinking water to Baku and Sumgayit.