autumn landscape of the vacha antonivanovtsi reservoir, rhodope mountains, plovdiv region, bulgaria

amazing antonivanovtsi antonivanovtsy autumn balkans bulgaria canyon cascade dam devin engineering environment europe fall forest geological gorge hill hydro hydroelectricity krichim ladscape landmark landscape meander mountain mountains natural nature panorama peninsula plovdiv power region reservoir resource rhodope rhodopes river rodopi scenery scenics terrain tourism travel tree vacha view water wilderness