Čačak (Serbian Cyrillic: Чачак, pronounced [t͡ʃǎːt͡ʃak]) is a city in west-central Serbia. Čačak lies on the West Morava river, which is the second largest river in Serbia after the Danube (308 km), and between Šumadija and the Dinaric Alps, in the Čačak-Kraljevo valley. It is the administrative center of the Moravica District of Serbia. Čačak is the main economic, cultural and sport center of the district, which includes Gornji Milanovac to the north and Lučani to the southwest. Čačak borders Požega, Serbia (Zlatibor District) to the west, Knić (Šumadija District) to the east and Kraljevo (Raška District) to the southeast. Moravica District includes Čačak, Gornji Milanovac, Lučani and Ivanjica. The lowest altitude is 204 m (confluence of Bresnička reka and Zapadna Morava) and the highest