Salween River much of its length, the Salween's course is nearly parallel to that of the much larger Mekong in the east. Although the commonly accepted name is Salween, the river is known by a handful of other names regionally: "Nu" in China, "Thanlwin" in southern Burma, and "Salawin" on the border of Thailand and Burma. Several major sub-continental drainage basins border on the Salween. The Mekong basin forms nearly the entire eastern boundary of the watershed, while the Irrawaddy River flows southwards on the west side of the basin. The smallest boundary is formed by the Yangtze to the extreme north.
Migration period of ancient Burma flowing through Yunnan and the neighboring lands of Burma, Laos, Thailand, Cambodia and Vietnam. The basins of these rivers and their tributaries form deep, narrow valleys which, with the high parallel mountain ranges running generally north and south, constitute a favourable home for numerous ethnic minorities. Yunnan shares a long common border with Burma and many ethnic groups that live in Yunnan can also be found in Burma. Burma is like a big super-highway between India and China. India and China are the world's biggest and ancient cradles of civilization. High, snow peaked, rough and steep Himalaya mountain ranges block