Ergenekon's legend.

2,000 years ago, two families escaped from the conflict between Mongolia and Turkic provinces and were forced into the Ergune-Kun gorge, where there was no other way to enter except for a narrow path. As a result, when their descendants multiplied and their land was no longer contained by the water, they all gathered together and discussed, and by breaking the dam, they made a hole by melting the mountainside.