It originates from the Northern mountainous region of Xiangkhoang Province and flows south through Vientiane Province joining the Mekong at Vientiane Capital.
Vientiane | province | Buenos Aires Province | Transvaal Province | Katanga Province | Cape Province | Western Province | New Ireland Province | Kars Province | Pichincha Province | Santa Fe Province | Dewa Province | Entre Ríos Province | Roman province | Rhine Province | Natal Province | Helmand Province | Battambang Province | La Convención Province | Hakkâri Province | Western Province (Papua New Guinea) | Northern Province | Mendoza Province | Guanacaste Province | Province of New York | Fars Province | Boulgou Province | Province | Manabí Province | El Oro Province |
The special zone was created 1994 with area split off from the provinces Vientiane, and Xiangkhoang.