For a few weeks in summer, the water has retreated allowing archeologists to examine graves of prehistoric civilisations dating from the Bronze Age to the time of Genghis Khan.
Especially rich in finds are necropolises from the time an ancient Hun population that held sway at the site around some two thousand years ago.
By early July, the water will rise and cover the graves again up to 50 ft deep, frozen in winter, until it retreats briefly next summer.
Archeologists can only work here until the end of this month (June) before this mountain ‘Atlantis’ is once more submerged.
But there are fears that over several years ... Read even more