China–Mongolia border
Appearance
The border between China and Mongolia is the line that limits the territory of People's Republic of China and Mongolia; it stretches 4677 kilometers from east to west, between two triple borders China - Mongolia - Russia .
The west end is located only 55 km from the beginning of the border Russia - Kazakhstan and is marked by the mountains of Altai . In the east it is the Manchurian border and passes through the Gobi Desert .