Yoliin Am , whose name means "Valley of the Vultures" is a deep and narrow canyon in the Gurvan Saikhan Mountains, south of Mongolia.
It is located in the Gobi Gurvansaikhan National Park ("3 Beauties" in reference to three mountain ranges that make it up), in the heart of the Zuun Saikhanii Nuruu range ("Beauty of the East").
This region, like the rest of the Gobi Desert, receives little rainfall, but the canyon is famous for its ice field which reaches several meters thick and several kilometers long at the end of winter.
In the past, the icefield remained throughout the year, but in recent years, it tends to disappear during summer.
Nearby, the Dungenee Canyon is particularly spectacular, being very narrow, sometimes hardly wider than a car.