Šumadija is a geographical region in the central part of Serbia. Šumadija is located between rivers Sava and Danube in the north, river Great Morava in the east, river West Morava in the south, and Kolubara, Ljig and Dičina in the west. According to some interpretations, the northern border of Šumadija lay between Avala and Kosmaj mountain. This region is deservedly called "the heart of Serbia" for several reasons. The most obvious one is it's geographical position in the very centre of the country, away from all borders. A mountain range called the Šumadija Ridge descends gently from the south of this region towards Belgrade. The peaks of these mountains are still covered with woods, relics of once much greater forests that gave Šumadija its name. Central Šumadija is well known for its rich horticulture, with major products being plums, apples, pears, apricots, peaches, nuts, cherries, strawberries, and raspberries. The most common folk costume of Serbia is that of Šumadija. It includes the national hat, the Šajkača, and the traditional leather footwear, opanci. Older villagers still wear their traditional costumes. The fertile region of Šumadija is particularly known for its plums and Slivovitz (Šljivovica), plum brandy, the national drink of Serbia.