Trigrad Gorge



The Trigrad Gorge (Триградско ждрело, ) is a canyon of vertical marble rocks in the Rhodope Mountains. 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 m further emerges as a large karst spring. It later flows into the River Buynovska. The gorge's west wall reaches 300 m in height, while the east one extends up to 300 –. Initially, the two walls are about 300 m apart, but the gorge narrows to about 100 m in the northern section. The gorge is 1.2 km from the village of Trigrad at 1,450 m above sea level and has a total length of 7 km, of which the gorge proper comprises 2 –.

Honour
Trigrad Gap on Livingston Island in the South Shetland Islands, Antarctica, is named after Trigrad settlement and gorge.