The Buynovska (Bulgarian: Буйновска река) is a river of Plovdiv Province, Bulgaria. It is one of the source rivers of the Vacha and is joined by the Trigrad Gorge.
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Buynovska in the context of Trigrad Gorge
The Trigrad Gorge (Bulgarian: Триградско ждрело, pronounced [triˈɡratsko ʒdrɛˈɫɔ]) is a canyon of vertical marble rocks in the Rhodope Mountains, part of the Dobrostan Formation (Proterozoic). It is in Smolyan Province, one of the southernmost provinces of Bulgaria.
The gorge encloses the course of the Trigradska River, which plunges into the Devil's Throat Cave and 530 metres (1,740 ft) further emerges as a large karst spring. It later flows into the River Buynovska.
View the full Wikipedia page for Trigrad Gorge