It started from Vinh to Cua-rao, Vietnam, then to Muong-sen and Tran-Ninh, the former capital of Xieng khouang at the time, in XiangKhouang province, Laos, for a distance of 402 kilometers.

From 1916, it was extended to Muong-sen and Ban Bane,[29] two neighboring villages located on the Route 7[30] near Muang Kham, Laos.

The total distance from Nong Het to Phoukhoune District (Sala Phou Khoun)[34] is approximately 249.9 kilometers.

On the Route 7 coming from Phonsavan to north and east, about 18 km from Muang Kham, there are two hot mineral springs.

In downtown of Muang Kham, Route 7 runs through the middle of town and heads straight to Nong Het.

The Plain of Jars, a UNESCO World Heritage Site, is located less than 13 km from Phonsavan downtown.

It lies northeast of Vang Vieng and west of Muang Soui and Ban Phou Pheung Noi.

Some people call the city of three way stops coming from Vang vieng, Luang prabang, and Phonsavan.

This refers in particular for travelers who wish to change connections to go to Luang prabang, Phonsavan, or Vang vieng.