Balkanabat, formerly Nebit-Dag and Neftedag, is the administrative centre of Balkan Province, the largest province in Turkmenistan. It lies at the foot of the Balkan Daglary mountain range. Balkanabat is about 450 km west of Ashgabat and 160 km east of the seaport city of Türkmenbaşy. The city layout is a grid of apartment blocks called kvartal. The main streets are Magtymguly, Pervomayskiy and Gurbansoltan eje şaýoly.