Qusar is the capital of Qusar District, Azerbaijan. Qusar is located in the foothills of the Greater Caucasus, over the Qusarchay River, 35 kilo…Qusar is the capital of Qusar District, Azerbaijan. Qusar is located in the foothills of the Greater Caucasus, over the Qusarchay River, 35 kilometers southwest from Khudat railway station and about 180 km from Baku.