Jerma

The Jerma (Serbian Cyrillic: Јерма) or Erma (Bulgarian Cyrillic: Ерма) is a river in southeastern Serbia and western Bulgaria. Even though not very long (74 km), it is notable for passing the Serbian-Bulgarian border twice. The Jerma originates in the undeveloped and sparsely populated area of Krajište, in the southeastern corner of Serbia. Starting from between the artificial Lake Vlasina and the Bulgarian border, it flows to the northwest on the eastern slopes of the Gramada mountain, passing through the village of Klisura, after which it enters the area of Znepolje (Bulgarian: Znepole; Cyrillic: Знепоље/Знеполе), an arid region stretching over the border into Bulgaria. This is where the Jerma crosses the border for the first time, at...