Gobi Desert from , and those of the ranges from higher, though in a few cases they reach altitudes of . The elevations do not form continuous chains, but make up a congeries of short ridges and groups rising from a common base and intersected by a labyrinth of ravines, gullies, glens and basins. But the tablelands, built up of the horizontal red deposits of the Han-gai (Obruchev's Gobi formation) which are characteristic of the southern parts of eastern Mongolia, are absent here or occur only in one locality, near the Shara-muren river. They are greatly intersected by gullies or dry watercourses.
Zhelaizhai being a "subgroup of the Chinese majority Han." Zhelaizhai lies in the Hexi Corridor in the northern region of China, on the eastern edge of the Gobi Desert. It is rural, with the nearest city being distant. Zhelaizhai Zhelaizhai () is a village on the edge of the Gobi desert in Gansu province, China. The area was renamed after Liqian, an ancient county, and is located in Jiaojiazhuang township, Yongchang County. Some of the modern-day residents of Zhelaizhai, now known as Liqian village, have been suspected to be descendants of a group Roman soldiers that were never accounted for after