Once there was a huge mining complex, which was built on a grand scale, in the hope of extracting super-profits from rich deposits. But either geological exploration was not carried out carefully enough, or kickbacks are to blame. In general, all the minerals were developed before the disaster, and heavy equipment and buildings were abandoned. Indeed, in the old world it was often cheaper to throw away a thing than to dispose of ...
Today, the gorge is home, landfill and hunting grounds for hundreds of raiders who settled in old mines. After all, it is through this area that the shortest trade route between the valley and the western Kaganate runs. Of course, there are islands of peace, fortified areas, protected from attacks, but they no no no replace the host. And there is always the risk of getting a bullet in the back from someone who just helped you change the wheel.
So they curse the drivers who have to go this way, the last words of these Devil's mines.