The Gruža (Serbian Cyrillic: Гружа, pronounced [ɡrûʒa]) is a geographical region in central Serbia.
The reservoir contains 65,000,000 m3 (2.3×109 cu ft) of water and covers an area of 9.34 km2 (3.61 sq mi), thus permanently flooding a part of the Knić Field.
[3] The southern section of the region, in direction of West Morava, is a composite valley, cut between the mountains of Kotlenik and Gledičke.
The settlements are mostly dispersed, and the center of the region is the municipal seat of Knić, located 4 km (2.5 mi) west from the Gruža river.
[3] Lepe li su nano Gružanke devojke (Oh, mom, girls from Gruža are beautiful) is a popular folk song, written by Dragiša Nedović.