It is situated in two provinces : Sainyabuli and Vientiane .
The 18,230 hectare Mekong Channel upstream of Vientiane Important Bird Area ( IBA ) comprises an approximately 300 kilometres ( 190 mi ) section of the Mekong Channel upstream of Vientiane city .
It is situated in two provinces : Sainyabuli and Vientiane .
The 18,230 hectare Mekong Channel upstream of Vientiane Important Bird Area ( IBA ) comprises an approximately 300 kilometres ( 190 mi ) section of the Mekong Channel upstream of Vientiane city .