Khoune District 5. Morkmay District 6. Phoukood District 7. Phaxay District Xieng Khouang province has a border with Luang Prabang and Huoaphanh in the north, Vietnam in the east, Bolikhamxay in the south, Vientiane and Xaysomboune in the west. This is a province that best known for the Plain of Jars.