Most experts believe that fire has been burning for at least 6,000 years, although some argue that it could be much older. Therefore, it is difficult to record or determine the actual dimensions of the beginning of fire in the past. However, we can know its existence thanks to the smoke billowing from the mountain.

At present, the railway line has spread up to 6.5 kilometers. However, no expert can accurately predict when exactly this fire first ignited. Similar underground coal fire phenomena have been identified in various locations around the world, especially in China, India, and the United States.