Southeast Europe
This concept is based on the boundaries of the Balkan peninsula. The countries that have been described as being entirely within the region are: Albania, Kosovo, Bosnia and Herzegovina, Bulgaria, Macedonia and Montenegro.
Balkan Mountains
There are a number of waterfalls, especially in the western and central parts of the range, such as Raysko Praskalo which is the highest waterfall in the Balkan Peninsula, Borov Kamak, Babsko Praskalo, Etropole Waterfall, Karlovsko Praskalo, Skaklya and others. Developments in the recent two decades completely changed the geography of Serbia, when it comes to waterfalls. Area of the Stara Planina has always been sparsely populated and inaccessible because of the rugged and forested terrain, but also as a location of the Serbian-Bulgarian border. As armies relinquished the borders keeping to the police, civilians were allowed to explore the area. As a result, higher and higher waterfalls have been discovered on the Serbian side of the Stara Planina since then: Čungulj in 1996 - ; Pilj in 2002 - ; Kopren in 2011 - ; Kaluđerski Skokovi in 2012 - .