region flows from the Greater Caucasus to the Kur-Araz lowland. The inland waters of the district are included in the hydrologic basin of the Shirvan region. The rivers are fed by snow, rain and ground water. The main river in the district is the Goychay River that belongs to the basin of the southern slopes of the Greater Caucasus Mountains, as well as the Kur. It is considered as transit river in Shirvan plain. The total length of Goychay river is 115 km and the catchment area is 1770 km2. The average water flow rate in the river is 12.5 m / sec, the maximum speed is 70m / s. Goychay river is fed by 12% of snow, 28% rainfall and 60% underground waters. The average annual water consumption of the river is 12kub m / sec, of which 30-35% is in spring, 20-25% in summer, 18-22% in fall, and 15-17% occur in winter. Nohurqıslaq water reservoir built in the Gabala district supplies water to the river in summer when there is a decrease in its flow. The second long river in the area of the district is the Arvan River. The Arvan river flows from Arvan Mountain which is located 12 km away from the city. It often caused floods in spring in the past. In order to prevent this, the dam was built between 1972 and 1980 and the direction of its water changed to the Goychay River. The Arvan River dries up during the hot months of the year. Shilian River is another river in the region that is a branch of the Goychay River. History The name of the region was taken from Goychay River which means "Blue River" (Göy çay) in Azerbaijani language due to the very clean nature and transparency of the river and light blue colour of the water. Due to a 1859 earthquake in Shamakhi, many of its residents moved to the west establishing a village of Goychay. Because of demographic growth, the Russian Imperial government created Goychay Uyezd within Baku Governorate during its administrative reforms in December 1867. The region was established as an administrative unit of Azerbaijan SSR on 8 August 1930. Economy The economy Goychay district is based on industrial agriculture, consumer market, transportation, and communication. The total value of goods produced by various enterprises, organizations, and individuals operating in the region was approximately 248,331.0 thousand AZN according to