China–Mongolia border
The border between China and Mongolia is the line that limits the territory of People's Republic of China and Mongolia; it stretches from east to west and touches both the China–Russia border and the Mongolia–Russia border.
The western end is located 55 km from the beginning of the Kazakhstan–Russia border and is marked by the Altai Mountains in Xinjiang. The eastern end of the border includes the Gobi Desert in Hulunbei'er, formerly of Heilongjiang.Sex trafficking
Mongolian and Chinese women and girls are sex trafficked to and through the China–Mongolia border. At the border and in the Gobi Desert are global mining sector and other heavy industry operations with large workforces of isolated men. These sites, including the ones in Tavan Tolgoi coal deposits, have been a focal point for prostitution and sex trafficking.Historical maps of the border from west to east from the International Map of the World, middle 20th century :
