( Champasak province also has several districts located west of the Mekong river including Mounlapamok , Soukama and Phontong districts . )
Xayabuli is the only Laotian province that is completely to the west of the Mekong River .
( Champasak province also has several districts located west of the Mekong River river including Mounlapamok , Soukama and Phontong districts . )
Xayabuli is the only Laotian province that is completely to the west of the Mekong River .