2-651-766 - The Print Collector/Heritage Images

'Bulgaria. Perpendicular limestone cliffs line the defile into which the river Isker, flowing northwards, turns after leaving the plain of Mezdra. Here at Karlukovo, where it is first fordable, the railway follows its serpentine course at the foot of stern crags topped with hardy vegetation', c1920. Mezdra is a town situated in the Vratsa Province, in northwestern Bulgaria. The settlement developed on the left bank of the Iskar river. Karloukovo is a village in the Lovech Province, near the Iskar Gorge, northern Bulgaria. From Geographical Magazine, Volume 2, c1920.