Route 13 is the most important highway in the country of Laos. It beginns at Boten in the North of Laos at the Chinese border. It connects the city of Vientiane to Luang Prabang in the north and roughly follows the line of the Mekong River down to the border with Cambodia. The road then continues at National Highway 7 in Cambodia. Also this national highway leads past all three international airports in Laos Vientiane Airport, Luang Prabang Airport and Pakse Airport. Between Boten and Nateuy the Route 13 is a length of 20 km to the Kunming-Bangkok Expressway, which is also part of the Asian Highway AH3.
Route 13 passes through the cities of Vientiane, Vang Vieng and Luang Prabang. The road is mostly paved, though the pavement is in poor condition at places. It is also relatively narrow, with sharp curves. There are no markings or lighting on the road. Several daily buses run from Vientiane to Luang Prabang, taking 8-10 hours.[1]